steven w. schmauch u.s. bureau of mines - usgsa chip sample from across the phyllite- dolomite...

Page 1

DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP MF-1492-D U.S. GEOLOGICAL SURVEY

MINES AND PROSPECTS OF THE ANDREWS MOUNTAIN, MAZOURKA, AND PAIUTE ROADLESS AREAS, INYO COUNTY, CALIFORNIA

By

Steven W. SchmauchU.S. Bureau of Mines

Pamphlet includes table 2 only, table 1 and text on map sheet.

Page 2

Tab

le

2.

Su

mm

ary

of

min

es

and

pro

spe

cts

in

the

A

ndre

ws

Mo

un

tain

, M

azou

rka,

an

d P

aiu

te

Roa

dles

s A

reas

[Underlin

ed

nam

es re

fer

to pro

pert

ies fu

rth

er

desc

ribed in

th

e

Min

era

l R

esou

rce

Pote

ntial

map

, M

F-1

492-

B]

Map

N

o.Na

meSu

mm

ary

Wor

king

s an

d p

rod

uct

ion

Res

ourc

e/sa

mpl

e d

ata

Big

P

ine

Cop

per

No.

1

Boa

z

Kaw

eah

Al i

ce

Al i

ce

Ext

en

sio

n

6 Unknown

I/

(35, 9, 3T

)

Three

smal

l areas

with

coppe

r mi

nera

ls a

re e

xpos

ed

in a

granodiorite-hornfels c

onta

ct.

Mala

chit

e and

chry

soco

lla

are

disseminated

and s

tain

the f

ractures

in b

oth

rock t

ypes

.

Two

bands

of v

uggy

friable

limo

nite

, wh

ich

are

2 ft t

hick,

are

concordant w

ith

arenaceous l

imes

tone

th

at s

trikes N

. 20°

E. an

d dips 2

5° N

W.

The

limo

nite

-bea

ring

zones a

re s

epar

ated

by

a 0.6-ft-

thick

limestone

bed.

Cren

ulat

ed b

roke

n sl

ate

trends N

. 40°

W. and

dips fr

om 5

0° N

E. to

65°

SW.

The

dump

s contained

less

tha

n 5 pe

rcen

t qu

artz

. Qu

artz

is

vuggy,

iron-stained,

and

has

oxidiz

ed c

ubic m

asse

s of

gale

na.

No q

uart

z was

foun

d in

place.

Prospect i

n fissile

gray-bla

ck s

late.

Over

burd

en

cove

rs a

ny e

vidence

of q

uartz

outcrops.

Country

rock is

green c

alca

reou

s sl

ate

that

strikes

N. 57°

E. an

d di

ps 7

7° S

E.

An e

ast-

trending s

hear z

one

3 ft t

hick is

par

tly

filled

with

ban

ded

quartz-calcite

vei

ns a

nd i

s ex

pose

d for

15 f

t.

A fe

w pi

eces

of

quartz c

ontaining

lead

oxide

are

present

on the

dump o

f the

pit.

Nort

hwes

t-tr

endi

ng c

onglom

erat

e, sandstone, and

limestone

cont

acts

are

loc

ally s

heared.

Kaol

init

e an

d se

cond

ary

calcite

are

abun

dant

within

the

sheared

areas.

A 17

-ft-

deep

shaft a

nd a

bout

150

ft

of b

ulldozer c

uts.

A small

pit

and

a 15

-ft-

long

trench l

eads

to

a 19

-ft-

long

adit.

Two

shal

low

4-ft

-wid

e by 15-ft-

long p

its.

One

pit

17 f

t by 3

ft b

y 5

ft d

eep

trends N

. 35°

E.

One

pit, one

tren

ch,

and

an

adit 8

ft

long w

ith

a 5-

ft-

long u

nder

hand

stope.

A sh

allo

w pit

and

a 34-ft-

deep c

ross

cut

shaf

t in

clin

ed

45°

W.

Four r

andom

chip

or

grab s

ampl

es w

ere

take

n fr

om l

ocat

ions

wit

h vi

sibl

e copper m

iner

als.

A

select s

ampl

e of

app

aren

tly

the

high

est

grade

mate

rial

fr

om t

he sh

aft

had

4.63

perc

ent

copp

er.

The

othe

r three

samples

cont

aine

d 0.

38,

1.55

, an

d 2.

4 pe

rcen

t copper.

All

samp

les

also h

ad t

races

of g

old

and

silv

er.

Four s

ampl

es f

rom

the

limo

nite

bod

ies

had

as m

uch

as 0

.2 o

z gold p

er t

on,

0.2

oz s

ilver

per

ton, an

d 0.03 p

erce

nt

copper.

Two

select s

amples o

f mineralized

quar

tz

from

two

dumps c

onta

ined

0.0

1 an

d 0.

03

oz g

old

per

ton,

3.

8 an

d 8.

0 oz

silver

per

ton, 5.

2 an

d 11

.1 p

ercent l

ead.

A se

lect

sample

of q

uart

z in dump h

ad

2.6

oz si

lver

per

ton

, 4.

3 percent

lead,

and

a trace

of g

old.

A ch

ip s

ample

from

the

adi

t fr

om a

cros

s th

e sh

ear

zone h

ad a

trace o

f gold a

nd

0.6

oz s

ilve

r pe

r ton; a

grab s

ample

of

quar

tz f

rom

the

dump

as

saye

d a

trace

of

gold a

nd 0

.2 o

z si

lver

per

ton.

A se

lect

sam

ple

of m

iner

aliz

ed q

uartz

floa

t fr

om t

he p

it c

onta

ined

0.03

oz

gold

per

ton,

2.6

oz silver p

er t

on,

and

4.3

perc

ent

lead

.

Thre

e ch

ip samples

from

conglomerate

and

from

a s

hear

ed c

onglomerate-

sand

ston

e co

ntac

t at

the

sh

aft;

ea

ch

assa

yed

a tr

ace

of gold a

nd c

oppe

r, on

e ha

d 0.17 p

ercent l

ead.

Tw

o grab s

amples

from t

he p

it d

ump

cont

aine

d tr

aces

of

gold

, co

pper

, an

d le

ad.

Page 3

Table

2. Summary o

f mi

nes

and

prospects

in t

he A

ndrews M

ountain, Ma

zour

ka,

and

Paiute R

oadl

ess

Areas Continued

Map No

.___

_Nam

eSu

mmar

yWo

rkin

gs a

nd

production

Resource/sample

data

10 11 12

Cabin

Bob

Whit

e

Mule

Springs

No.

1

Lucky

Bee

JR N

o. 2

Interbedded

shale

and

lime

ston

e co

ntai

ns several

subparallel

bedd

ing-

plan

e quartz v

eins

tha

t are

a fe

w in

ches

thi

ck,

with

pods

as m

uch

as 4

ft

thick,

whic

h ar

e tr

acea

ble

for

abou

t 20 f

t.

Most o

f the

quar

tz is

mas

sive

; brecciated a

reas a

re filled w

ith

sili

ceou

s limonite a

nd f

ine-grained

gale

na.

High

ly f

ract

ured

quart

z co

ntai

ns m

inor

pyrite

and

bornite

in s

hale c

ount

ry ro

ck.

Oliv

e-gr

een,

mi

cace

ous

phyl

lite

and i

nterbedded

dolomite s

trik

e N. 19°

W. and

dip

36°

SW.

Fria

ble,

brecciated q

uart

z float

is in

the d

ump

and

surr

ound

ing

area

.

Crys

tall

ine

limestone

has

been in

tens

ely

frac

ture

d an

d locally

meta

morp

hose

d.

A brecciated z

one

is p

rese

nt b

etween t

he l

imestone a

nd a

san

dy

shal

e un

it.

A 5-

ft-t

hick

, 25

-ft-

long

lens

of b

ull

quar

tz i

s co

ncor

dant

with

inte

rbedded

shal

e and

sandstone.

A no

rth-

to

sout

h-tr

endi

ng p

od o

f qu

artz

, as

much

as 1

.0 f

t thick

and

less t

han

6 ft l

ong,

is

present

in m

assi

ve l

ight-brown

lim

esto

ne.

There

are

three

adits, a

22-ft-

deep shaft, and

a small

pit.

The

lowest a

dit

has

216

ft o

f work

ings

and

appe

ars

to h

ave

been driven

to i

nter

sect

the q

uartz

veins

foun

d in

the

uppe

r wo

rkin

gs.

One

pit.

One

pit.

A glo

ry

hole

10

0 ft w

ide,

170

ft lo

ng,

and

150

ft

deep

. An

un

know

n am

ount

was

us

ed

as

railr

oad balla

st

for

the

S

outh

ern

Pa

cific

R

ailr

oa

d

beds

in

th

is

are

a.

A 28-f

t-lo

ng a

dit.

One

pit.

Stru

ctur

es w

ere

not

cont

inuo

us e

nough

to

permit t

onna

ge a

nd g

rade e

stim

ates

. Si

x chip samples

acro

ss q

uart

z co

ntai

ned

a tr

ace

to 0

.8 o

z silver p

er t

on a

nd 0

.03

to 1.

95 p

erce

nt l

ead.

A

rand

om c

hip

samp

le f

rom

a 2-

in.-

thic

k ga

lena

-bea

ring

qu

artz

vein

assa

yed

2.9

oz s

ilve

r pe

r to

n an

d 4.

05 p

ercent l

ead.

About

25

tons o

f st

ockp

iled

quartz

at t

his

prospect a

vera

ge 2

.3 o

z si

lver

per

ton

an

d 2.

6 pe

rcen

t le

ad.

The

quartz v

eins

at t

his

prop

erty

con

tain

small is

olat

ed

concentrations o

f lead a

nd s

ilve

r.

Spec

imen

s of

quartz

cont

aine

d a

trac

e of

go

ld,

silv

er,

and

copper.

A ch

ip sa

mple

fro

m ac

ross

the

phy

llit

e-

dolo

mite

contact c

onta

ined

no

significant

values.

The

quartz a

ssayed

0.1

oz g

old

per

ton

and

0.3

oz s

ilver

per

ton.

Nine

random

chip

and

grab

samples

in

and

near t

he glory

hole s

howe

d a ca

lciu

m ox

ide

content

rang

ing

from

24.

9 to

36.7 p

ercent,

whic

h is t

oo l

ow f

or

cement m

anufacturing o

r fo

r fe

rtilizer

mark

ets.

Four

chi

p sa

mple

s ta

ken

at r

egular

inte

rval

s fr

om t

he q

uart

z; th

ree

assa

yed

as m

uch

as a

trace

of g

old

and

0.2

oz

silver p

er t

on.

A select s

ampl

e of q

uart

z co

ntai

ned

no

sign

ific

ant

valu

es.

Page 4

Tab

le

2.--

Sum

mar

y of

min

es

and

pro

spect

s in

th

e

And

rew

s M

ou

nta

in,

Maz

ourk

a,

and

Paiu

te

Roa

dles

s A

rea

s C

on

tinu

ed

Map

N

o.Na

me

Sum

mar

yW

orki

ngs

and

pro

du

ctio

nR

esou

rce/

sam

ple

da

ta

13

Blis

ter

Lode

A

30-f

t-w

ide,

120-f

t-lo

ng

area

of

dolo

mite

is

cu

t by

nort

h-t

rendin

g,

east-

an

d w

est

-dip

pin

g fa

ults,

faults.

Mos

t ar

e sh

ort

, irre

gula

r,

and

dis

con

tinu

ou

s;

the

lo

ngest

on

e w

as

1 to

4

in.

thic

k

and

30 ft lo

ng

. Th

e zo

nes

are

com

pose

d of

goug

e,

limo

nite

, sili

ceous

dolo

mite

, sid

erite

, an

d quart

z ve

ins

or

pods

. R

ando

mly

d

istr

ibu

ted

cu

bic

m

asse

s of

gale

na

are

so

met

imes

co

nce

ntr

ate

d

into

st

rea

ks o

r le

nse

s in

th

e fa

ult

zone

s.

The

larg

est

len

s is

0

.3 ft th

ick

and

1.5

ft

lon

g.

14

Unk

now

n I/

An

80-f

t-lo

ng,

3-f

t-th

ick

qu

art

z ve

in str

ike

s

N.

35°

(7,

10,

75

) E.

an

d d

ips

35°

to

60°

SE.

The

vein

is

co

nco

rdant

with

in

terb

ed

de

d p

hyllite

an

d dolo

mite

.

15

Mon

tezu

ma

min

e N

ort

heast

- to

nort

hw

est

-tre

ndin

g fa

ults

have

dis

pla

ced,

tilted,

and

loca

lly

ove

rturn

ed

limest

one,

arg

illite

, an

d d

olo

mite

str

ata

. F

aults,

lan

dslid

es,

bu

lldo

zer

trench

es,

an

d th

e w

est

erly

dip

of

the

str

ata

, w

hich

is

co

incid

en

t w

ith

slo

pe

angle

s, all

obsc

ure

geolo

gic

d

eta

il/

Irre

gu

lar

repl

acem

ent

bodie

s of

lea

d-z

inc-s

ilve

r o

re w

ere

foun

d in

th

e

Mon

o!a

For

mat

ion

limest

one.

Bec

ause

se

dim

ents

ar

e o

vert

urn

ed

, su

lfid

e

bodi

es

wer

e posi

tioned

abov

e pre

viousl

y o

xid

ize

d ca

rbo

na

te

bodie

s.

Sulfi

de

bodi

es

wer

e re

po

rte

d

by

Tuc

ker

(192

1,

p.

29)

to

be

30 ft w

ide

and

50 ft

lon

g.

Oxi

diz

ed

carb

on

ate

bo

dies

w

ere

200

ft

long

and

200

ft w

ide.

Thi

ckne

sse'

s as

re

po

rte

d

by

Cra

wfo

rd

(189

6,

p.

32,

33)

rang

e fr

om 7

to

12

ft

.

The

su

lfid

e

ore

body

co

nsi

sted of

finely

d

isse

min

ate

d

ga

len

a,

sphale

rite

, p

yrite

, an

d te

trahedrite

. L

arg

er

inte

rgro

wn

cry

sta

ls of

sp

hale

rite

an

d ga

lena

als

o

are

pre

sent.

In

additio

n

to

the

ab

ove,

th

e

carb

on

ate

bo

dy

con

tain

ed

vu

ggy,

cr

ust

y fo

rms

of

ce

rru

site

, sm

ithso

nite

, an

d a

zu

rite

. M

uch

of

the

ga

lena

w

as

arg

en

tife

rou

s

(see

K

nopf,

1914

, p.

11

0;

Ea

kle

, 19

23,

p.

13

8).

16

Mon

tezu

ma

Sou

th

Inte

nse

ly

fra

ctu

red

, in

terb

ed

de

d

lime

sto

ne

an

d gr

een

to

purp

le

sha

le is

part

ly

reheale

d w

ith

ve

inle

ts of

quart

z, calc

ite,

and

limonite.

Mala

chite

is

a

sso

cia

ted

with

th

e q

ua

rtz.

Thr

ee of

the

fo

ur

short

adits

form

a

series

of

inte

rconnect

ed,

15

°-in

clin

ed

st

opes

an

d drifts

tota

llin

g

260

ft of

deve

lopm

ent.

One

sm

all

pit.

Two

uppe

r adits, an in

term

edia

te,

and

a lo

wer

adit a

re a

ll caved.

They w

ere

reported t

o be 2

00,

400,

400, and

1,400

ft l

ong.

A 35-ft-

long a

dit

near t

he m

i 11 site

was

used f

or s

toring e

xplosives.

Switchback a

ccess

road

s and

a series o

f bu

lldo

zer

trenches a

nd

open c

uts

are

the

most

recent

development.

Prod

ucti

on w

as

inte

rmit

tent

fro

m 1893 t

o 19

68,

and

at l

east

1,023.7 o

z go

ld,

4,964

oz silver,

52,2

44 I

b le

ad,

38,872 I

b zi

nc,

and

47 I

b of

copp

er w

ere

prod

uced

(U.S.

Bure

au

of M

ines

pro

duct

ion

file

s).

Thre

e pits a

nd t

wo a

dits

tot

alli

ng

47 f

t.

Fifteen

chip

, on

e se

lect

, an

d on

e grab

sample w

ere

taken

from

quartz

vein

s an

d shear

zones.

Two

galena l

ense

s co

ntai

ned

55.3 t

o 65

.9 o

z si

lver

per

ton

an

d 13.0 t

o 20.6 p

erce

nt l

ead.

Th

irte

en

of th

e sa

mple

s ha

d 1.

2 oz

silver p

er

ton

or l

ess.

Thre

e chip samples

assa

yed

as m

uch

as a

trace

gold

.

A grab a

nd a

select

samp

le o

f ore,

pres

umab

ly f

rom

the

replacement

bodi

es,

had

7.2

and

8.2

oz s

ilve

r pe

r to

n, 5.

0 an

d 8.

8 pe

rcen

t le

ad,

5.0

and

6.3

percent

zinc

, an

d 0.

15 a

nd 0

.11

percent

copp

er.

Eight

samp

les

from

cou

ntry

rock

cont

aine

d no s

ignificant v

alue

s.

A se

lect

sample

from

a 1

-ton st

ockp

ile

of f

ract

ured

lim

esto

ne a

nd m

alac

hite

ha

d 0.

9 oz

silver

per

ton

and

15

perc

ent

copp

er.

Page 5

Tab

le

2. S

um

mary

of

min

es

and

pro

spect

s in

th

e

And

rew

s M

ou

nta

in,

Maz

ourk

a,

and

Paiu

te

Roa

dles

s A

rea

s C

on

tinu

ed

Map

N

o.Na

meSu

mm

ary

Wor

king

s an

d pro

duct

ion

Res

ourc

e/sa

mpl

e d

ata

17

Alic

e

Quart

z S

hort

, irre

gula

r n

ort

hw

est

-tre

nd

ing

sh

ear

zone

s m

in

e1

to

2

ft th

ick

are

com

pose

d of

altere

d

dolo

mite

, go

uge,

sili

ceous

dolo

mite

, an

d dis

sem

inate

d

pyrite

. S

tru

ctu

re lim

its

wer

e n

ot

tra

cea

ble

be

yond

th

e w

ork

ing

s.

18

Bla

ke

min

e 2J

A

ltere

d

lime

sto

ne

pe

rmea

ted

with

lim

on

ite

, go

uge,

(J

R N

o.T

T

sili

ceous lim

onite,

and

sid

erite

fo

rms

gra

dational,

indis

tinct

boundaries

with

in lo

ca

lly

ove

rturn

ed

limest

one str

ata

. Th

e ar

ea of

inte

nse

a

lte

ratio

n

is

abou

t 60

ft w

ide

and

200

ft lo

ng

in

ro

cks

tha

t tr

end

no

rth

we

st

and

dip

40

to

50

° N

E.

Gal

ena

is

pre

sent

in

rand

om c

ubic

m

asse

s an

d as

m

atr

ix

fillin

gs of

bre

ccia

ted

, sili

ceous

goss

an

zone

s as

m

uch

as

1.0

ft th

ick

and

12 ft

lon

g.

19

Luck

y Ji

m

Dark

-gra

y iro

n-s

tain

ed

sla

te is

cu

t by

a

0.5

-ft-

th

ick,

55-f

t-lo

ng

shea

r zo

ne th

at

str

ikes east

, d

ips

70°

to

88°

N.

Dis

contin

uous

ve

inle

ts

of

bre

ccia

ted

q

ua

rtz

in

the

sh

ear

zone

co

nta

in

ble

bs

and

thin

str

ingers

of

gale

na

and

sp

ha

lerite

.

20

Pla

in

Vie

w

Lim

onite

an

d sid

erite

alo

ng fr

actu

res,

and

a sm

all

shea

r zo

ne th

at

conta

ins

limo

nite

an

d pyrite

ar

e in

gr

ay

lime

sto

ne

an

d b

uff

dolo

mite

.

21

Eas

t S

ylve

ster

No str

uctu

re

was

o

bse

rve

d.

Dum

p m

ate

rial

was

iro

n-

and

cop

pe

r-st

ain

ed

go

ssan

an

d lim

est

one.

Fiv

e a

dits,

two

of

whi

ch

inte

rsecte

d

shea

r zo

nes,

ra

nged

be

twee

n 10

and

50

ft lo

ng

. M

r.

A.

Love

tt

prod

uced

3

9.3

oz

gold

fr

om 2

0 to

ns

in

1907

(U

.S.

Bur

eau

of

Min

es

pro

duct

ion file

s).

Six

adits to

tallin

g m

ore

than

50

0 ft of

exc

ava

tion

, on

e ca

ved

adit,

and

thre

e pits.

In

1919

, th

e p

rop

ert

y yie

lde

d

525

oz

silver

and

22,6

60 Ib

of

lead

from

37

tons

(U.S

. B

urea

u of

Min

es

pro

duct

ion file

s).

A 3

0-f

t-lo

ng

tr

ench

with

a

15

-ft-

de

ep

shaft

and

25

-ft-

lo

ng adit.

Two

pits.

Thre

e small

pits.

The

shear

zones

were

too

sho

rt a

nd

irre

gula

r to

sample

well

enough t

o de

term

ine

resources.

One

of 1

3 ch

ip

samples

assa

yed

0.33

oz

gold p

er t

on;

the

others c

onta

ined

a t

race o

f go

ld.

Thre

e grab o

r select s

ampl

es o

f si

lice

ous

dolo

mite

had

0.1

9, 0.

41,

and

0.99 o

z gold p

er t

on.

The

larg

est

mineralized

area,

40 f

t long a

nd 2

.3 f

t wide,

comb

ined

wi

th t

wo smaller

area

s ha

s a

total

of 6

00 t

ons

of i

ndic

ated

and

inf

erre

d su

beco

nomi

c re

sour

ces

with

a w

eigh

ted

aver

age

of 1

.49

oz si

lver

per

ton

and

4.87 p

erce

nt l

ead.

Thre

e ch

ip s

amples f

rom

the

shea

r zo

ne

and

quartz h

ad a

s much a

s 0.

04 o

z gold

per

ton, 3.

0 oz

silver p

er t

on,

0.23

pe

rcen

t co

pper

, an

d 7.

0 pe

rcen

t le

ad.

A select s

ampl

e of m

ineralized q

uart

z co

ntai

ned

1.6

oz s

ilver

per

ton,

3.

3 pe

rcen

t le

ad,

and

3.1

percent

zinc

.

Two

select s

amples a

ssay

ed t

race gold

and

0.2

oz silver p

er t

on.

Three

random g

rab

samples

from

the

dum

p co

ntai

ned

a trace

of g

old

and

an

aver

age

of 0

.21

perc

ent

copp

er.

Page 6

Tab

le

2.--

Sum

mar

y of

min

es

and

pro

spe

cts

in

the

A

ndre

ws

Mo

un

tain

, M

azou

rka,

an

d P

aiu

te R

oadl

ess

Are

as

Contin

ued

Map

No.

Name

Sum

mar

y

22G

reen

G

ian

t M

arb

e

Nos

.

23 24

Conta

ct S

ilve

r U

oT

S

Gol

d G

iant

No.

4

25B

lack

A

ster

2/

Pale

ozo

ic

do

lom

ite,

sha

le,

and

lime

sto

ne

str

ike

nort

hw

est

and

dip

40

° to

75

° S

W.,

with

lo

cal

ove

rturn

ing of

som

e str

ata

. C

rysta

lline d

olo

mite

cr

ops

ou

t ove

r an

ar

ea

ab

ou

t 1

mi

lon

g,

and

is

1,00

0 ft th

ick.

Maj

or nort

hw

est

-tre

ndin

g fa

ults

and

ove

rtu

rnin

g of

beds

an

d ha

ve in

ten

se

ly fr

actu

red

an

d b

recc

iate

d

the

ro

cks.

A 1.0

-ft-

thic

k,

nort

hw

est

-tre

ndin

g fa

ult in

dolo

mite

is

filled w

ith sili

ce

ou

s,

iro

n-s

tain

ed

fr

iable

go

uge.

Th

e o

nly

vis

ible

min

era

l in

th

e

untr

ace

able

fa

ult w

as m

ala

chite

. A

majo

r fa

ult

map

ped

in th

is

area

pro

jects

th

rough

the

A

lice

Q

uart

z m

ine,

0

.75

m

i n

ort

hw

est

of

this

lo

cation.

Gra

y to

b

uff

-do

lom

ite

is

mas

sive

an

d exte

nsiv

ely

fr

actu

red

. Th

e la

rgest

of

seve

ral

nort

h-t

rendin

g

shea

r zo

nes

is

3.5

ft t

hic

k

and

ext

en

ds

for

ab

ou

t 30

ft

. Th

e zo

nes

are

com

pose

d of

bre

ccia

ted

d

olo

mite

, go

uge,

an

d le

sse

r am

ount

s of

sili

ceous

limom

'te,

band

ed q

ua

rtz-lim

om

'te,

hem

atit

e,

calc

ite,

azu

rite

, an

d m

ala

chite

.

An

area

1,

100

ft lo

ng

and

400

ft w

ide

in

tffe

vic

inity

of

a d

olo

mite

-sla

te co

nta

ct h

as

seve

ral

1-

to 5-f

t-

thic

k

shea

r zo

nes.

Th

e lo

ngest

one

is

ex

pose

d un

derg

roun

d fo

r 14

0 ft

. Q

uart

z ve

ins

crop o

ut

in

sili

ceous

do

lom

ite,

bu

t la

rge

r m

ore

contin

uous

vein

s an

d le

nse

s a

re

in

the

g

ou

ge

-fill

ed

sh

ear

zone

s.

Ran

dom

ly

dis

sem

inate

d ble

bs

of

oxi

diz

ed

gale

na

and

ma

lach

ite

are

in

som

e of

the

q

ua

rtz

and

sili

ceous

dolo

mite

.

Work

ings

and

production

Resource/samp! e d

ata

Quarry d

evelopment c

overs

appr

oxim

atel

y 15 a

cres a

nd i

s on

four b

ench

lev

els

with

abo

ut

1,000

ft o

f bu

lldo

zer

tren

ches

. Ol

der

work

ings

inv

esti

gate

d parts

of m

ajor

faults

and

the

igne

ous-

se

dime

ntar

y co

ntac

ts.

They include

three

shor

t 'c

aved

sha

fts,

an 8

ft

adit

, and

two

pits

. The

owne

r states a

n unknown

amount o

f marble

was

prod

uced

in

the

1950

's.

In

1978

, Mr

. LaVigne

prod

uced

250

tons o

f ma

rble

chips,

used f

or

terr

azzo

aggregate.

Two

adits, each 3

0 ft l

ong,

two

pits a

nd a

tre

nch.

TwV trenches 1

1 an

d 25 f

t long,

an 11-ft-long a

dit,

a 36

-ft-long

incl

ined

shaft,

a ve

rtical

sh

aft

abou

t 30 f

t de

ep,

and

a pit.

Four s

mall

pi

ts,

two

adits

60

and

200

ft l

ong,

and

a 22

-ft-

deep s

haft

with

an 8

0-ft

-long

drif

t at t

he b

otto

m.

A series o

f bench

cuts

ove

r th

e entire

outcrop

coul

d ea

sily

pr

ovid

e 5 mi

llion

tons o

f in

ferr

ed s

ubec

onom

ic r

esources.

Thre

e se

lect

, on

e grab,

and

one

chip

samp

le,

all

from

sil

iceo

us l

imom'te

mate

rial

fr

om a

she

ar z

one

cont

aine

d from 0

.01

to 0

.37

oz g

old

per

ton,

0.

1 to 4

.4 o

z silver p

er t

on,

and

0.02

to

0.47

perc

ent

copp

er.

Six

chip,

two

select,

and

one

grab

sample f

rom

shea

r zo

nes,

qu

artz

, or

sili

ceou

s li

moni

te.

One

chip

sam

ple

from

a 0

.7 f

t mineralized

shea

r zone

assayed

0.2

oz g

old

per

ton.

Se

lect

ed

azur

ite-

and

malachite-stained q

uartz

from

the

pit

had

9.4

oz

silv

er p

er t

on,

4.0

perc

ent

copp

er,

and

2.6

percent

lead

. Th

e ot

her

samp

les

cont

aine

d no

significant

meta

l va

lues

.

Nine

hun

dred

ton

s of

ind

icat

ed a

nd

infe

rred

sub

econ

omic

res

ourc

es a

vera

ge

1.0

oz si

lver

per

ton

fr

om a

qua

rtz-

rich

pa

rt o

f th

e la

rges

t shear

zone

. Other

more

hi

ghly

mineralized q

uartz

.veins

were

not

suf

fici

entl

y ex

pose

d to

dete

rmin

e resources.

It is likely th

at

the

three

select s

amples r

epre

sent

the

highest

grade

material available.

Resu

lts

rang

ed f

rom

2.6

to 5

.4 o

z si

lver

pe

r to

n an

d 1.

3 to 1

.4 p

erce

nt l

ead.

Page 7

Tab

le

2. S

um

mary

of

min

es

and

pro

spect

s in

th

e

And

rew

s M

ou

nta

in,

Maz

ourk

a,

and

Paiu

te

Roa

dles

s A

reas

Contin

ued

Map

No.

Nam

eSu

mm

ary

Wor

king

s an

d pro

duct

ion

Res

ourc

e/sa

mpl

e da

ta

26 27 28 29 30 31 32

The

pred

omin

ant

trend of

join

t se

ts

in

fra

ctu

red

dolo

mite

is

N

. 15°-

50°

E.

and

N.

35-7

0°

W.

Ver

y m

inor

silic

ific

ation

has

occ

urr

ed

alo

ng

the

poorly

defin

ed

and

untr

ace

able

jo

ints

. F

ine

ly

dis

sem

inate

d

gale

na is

a

sso

cia

ted

w

ith

sili

ceous

dolo

mite

.

Unk

now

n I/

The,

countr

y ro

ck is

d

ark

-gra

y to

w

hite

-banded

(3,

11,

3TT)

lim

est

one.

A horizonta

l b

ed

din

g-p

lan

e q

ua

rtz

vein

as

muc

h as

1.

5 ft th

ick

can

be

tra

ced

fo

r 45

ft.

A vert

ical

shea

r zo

ne

dis

pla

ces

the

q

ua

rtz

vein

abou

t 0

.5 ft.

Va

lley

Vie

w

A 5-

to

15-f

t-th

ick,

da

rk-g

ree

n

diab

ase

dik

e

can

be

(Bue

na V

ista

) tr

ace

d in

term

itte

ntly fo

r 40

0 ft

and

str

ikes

N.

55°

to 7

0°

W.

in

quart

z m

onzo

nite

.

Unk

now

n I/

A 2-f

t-th

ick w

hite

qua

rtz

vein

is

in

q

ua

rtz

(8,

11,

3T)

monzo

nite

.

"69"

N

os.

1-6

A 6

- to

8

-ft-

thic

k

quart

z ve

in str

ikes

N.

65°

E.

and

dip

s 54

° SE

. in

horn

fels

. M

inor

am

ount

s of

dis

sem

inate

d

gale

na

are

in

th

e iro

n-s

tain

ed

q

ua

rtz.

Little

Jo

ker

Sin

uous

irre

gula

r m

asse

s of

milk

y q

ua

rtz

as

muc

h as

15

ft th

ick

and

30 ft

lon

g

crop o

ut

in

a n

ort

h-

elo

ng

ate

d 200-f

t-lo

ng

are

a.

The

cou

ntr

y ro

ck is

gra

nodio

rite

.

Squa

w m

ine

Fou

r sh

ear

zone

s le

ss

than

20

ft

long

and

1.0

ft

(Van

ey~

vTew

th

ick

are

com

pose

d of

hig

hly

fr

actu

red,

altere

d,

Nos

. 1

and

2)

quart

z m

onzo

nite

, lightly

to h

ea

vily

iro

n-s

tain

ed

go

uge,

an

d w

hite

quart

z ve

ins

or

pods

. Th

e quart

z co

nta

ins

sili

ce

ou

s iron,

limonite,

man

gane

se

oxi

des,

p

yrite

cu

bes,

sc

att

ere

d

gra

ins

of

ch

alc

op

yrite

, an

d m

ala

chite

in

fr

actu

res.

Thr

ee a

dits,

10,

20,

and

70 ft

long,

and

a 40°-

50°

inclin

ed

shaft,

94 ft

deep

.

A 62-f

t-lo

ng a

dit

and

ove

r 20

0 ft of

bulld

ozer

cu

ts.

Sev

en

smal

l pits.

One

35°-

inclin

ed 10-f

t-deep

shaft

and

a p

it.

Ten

shallo

w pits^

An 8

-ft-

lon

g adit,

a sm

all

pit,

and

a 130-f

t-lo

ng

bulld

ozer

cut.

Two

adits

23

and

26 ft

long,

a ca

ved

adit,

and

thre

e p

its.

All

15

sam

ples

co

nta

ine

d

from

a

tra

ce

to

0

.05

oz

gold

pe

r to

n,

with

on

e as

say

of

0.26

oz

gold

p

er

ton.

Two

sto

ckpile

sa

mpl

es

als

o

con

tain

ed

2

.9

and

20

.62

oz

silve

r p

er

ton.

Fou

r of

the

six

sa

mpl

es

con

tain

ed

a

tra

ce

of

gold

.

Thr

ee of

the

five ch

ip

and

grab

sa

mpl

es

con

tain

ed

a

trace

of

gold

an

d on

e ha

d 0

.1

oz silve

r p

er

ton.

A ch

ip

sam

ple

from

acr

oss

th

e ve

in

con

tain

ed

a

trace

g

old

.

Resu

lts

from

16

sa

mpl

es

show

no

sig

nific

ant

valu

es.

One

ch

ip

and

fou

r gr

ab

sam

ples

co

nta

ine

d

a tr

ace

of

gold

.

Abo

ut o

ne

-ha

lf of

the

nin

e chip

, g

rab

, o

r se

lect

sam

ples

of

qu

art

z fr

om

the

sh

ear

zone

s ha

d in

sig

nific

an

t gold

an

d co

pper

va

lues.

T

hree

se

lect

sam

ples

fr

om

sto

ckp

iles

rep

rese

ntin

g

less

th

an

2 to

ns

had

0.1

4,

0.4

9,

and

0.61

oz

g

old

p

er

ton

an

d 0

.36

, 0.0

1,

and

0.5

2

pe

rce

nt

cop

pe

r.

A gr

ab

sam

ple

of

qu

art

z fr

om

a

dum

p ha

d 0.1

0 o

z g

old

p

er

ton

an

d 0.

17 perc

ent

copper.

Page 8

Tab

le

2.--

Sum

mar

y of

min

es

and

pro

spect

s in

th

e A

ndre

ws

Mo

un

tain

, M

azou

rka,

an

d P

aiu

te

Roa

dles

s A

reas

Contin

ued

Map

N

o.Na

me

Sum

mar

yW

orki

ngs

and

pro

du

ctio

nR

esou

rce/

sam

ple

da

ta

33

Blu

e B

ell

min

e G

ray,

th

in-

to

med

ium

-bed

ded

lime

sto

ne

str

ike

snort

hw

est

and

dip

s so

uth

west

. Ir

on-s

tain

ed fa

ult

goug

e fills

sma

ll,

loca

lize

d

area

s of

be

dd

ing

-pla

ne

sh

ea

rin

g in

th

e co

un

try

rock

.

34

Mex

ican

H

at

An

altere

d,

silic

ifie

d

zone

alo

ng

a quart

z m

onzo

nite

- horn

fels

co

nta

ct str

ikes

N.

45°

W.

and

dip

s 45

° SW

. Th

e 4

-ft-

thic

k

zone

co

nta

ins

vein

s an

d po

ds of

vugg

y lim

onite-s

tain

ed q

ua

rtz

as th

ick

as

1.8

ft.

The

zone

ha

s be

en

expo

sed

for

60 ft

alon

g str

ike

an

d at

least

150

ft

dow

ndip

.

35

Mic

ha

el's

32

2 S

late

an

d phyllite

are

cut

by

num

erou

s n

ort

he

ast

- tr

en

din

g,

qu

art

z-

and

gouge-f

illed

shea

r zo

nes

in

a 30

0-

by 600-f

t are

a.

Qua

rtz

vein

s an

d le

nse

s ra

nge

from

0.3

to

3

.0 ft th

ick

and

are

sta

ine

d w

ith

1 i

mon

i te

an

d he

mat

i te.

36

Bad

ger

Fla

t A

400-

to

5

00

-ft-

thic

k

lime

sto

ne

-do

lom

ite unit

pro

spects

~

str

ike

s

N.

55

°-8

0°

W.,

dip

s 4

0°-

55

° S

W.,

and

ish

igh

ly fr

actu

red

. N

umer

ous

sh

ort

, h

igh

ly irre

gula

r,

dis

con

tinu

ou

s ve

ins,

ve

inle

ts,

and

pods

of

quart

z,

calc

ite,

and

sid

erite

ar

e in

g

ou

ge

-fill

ed

sh

ear

zone

s.

Thes

e ar

e poorly

expo

sed

and

no

t tr

ace

ab

le

beca

use

allu

viu

m c

over

s th

e

are

a.

A 4

0-f

t-lo

ng

, 4

.1-f

t-th

ick

segm

ent

of

shea

r zo

ne in

a

win

ze

appe

ars

to

have

m

ore

gold

an

d silver

than

an

y oth

ers

in

th

e

surr

ou

nd

ing

a

rea

. V

ery

min

or

amou

nts

of

ma

lach

ite sta

in

are

foun

d el

sew

here

in

th

is

vic

inity.

37

St.

P

hi H

ip

Thin

quart

z ve

in

in

brow

n phyllite

tre

nd

s N

. 50

° E

. an

d dip

s ve

rtic

ally.

38

Goo

d Lu

ck

Qua

rtz

vein

as

th

ick

as

6 in

. tr

ends

N.

20°

W.

in fr

actu

red

gr

ay

limest

one.

Sev

eral

th

in,

dis

contin

uous

quart

z ve

ins

are

pre

sent

here

.

One

50-f

t-deep

shaft,

a 25-f

t-deep

inclin

ed

sh

aft

, an

d 11

pits.

A 1

0-f

t-d

iam

ete

r shaft is

45

ft

deep

with

11

0 ft of

acc

ess

ible

45°-

inclin

ed drift.

Oth

er

wo

rkin

gs

incl

ude

an 8-f

t-deep

pit

and

15

shallo

w

sho

rt

bulld

ozer

cuts

.

A 6

0-f

t-lo

ng

tr

ench

an

d a

27

-ft-

d

iam

ete

r p

it m

ade

by

a b

ulld

oze

r,

and

one

smal

l p

it.

A clu

ste

r of

five clo

se

ly

spac

ed

ad

its

com

prise

34

0 ft of

deve

lop­

men

t, in

clu

din

g

a 7

0-f

t-lo

ng

w

inze

. In

additio

n,

there

a

re

thre

e

shafts

40 ft

deep

an

d le

ss,

nin

e

trench

es,

th

ree

sh

ort

a

dits,

and

43 p

its.

One

pit

35 ft

lo

ng

, 5

ft w

ide

, an

d 3

ft

deep

.

One

pit

10 ft

in

dia

mete

r an

d 2

ft

deep

.

Of

14

sam

ples

, only

th

ree

co

nta

ine

d

sig

nific

ant

valu

es.

S

ampl

es

from

tw

o p

its,

420

ft e

ast

of

the

shafts,

con

tain

ed

0

.4 to

0

.6

oz silve

r p

er

ton

. A

rand

om

grab

sa

mpl

e of

iro

n-s

tain

ed

fa

ult

goug

e fr

om th

e

inclin

ed

shaft

had

0.9

oz

silver

pe

r to

n.

Of

13

sam

ples

of

quart

z,

seve

n co

nta

ine

d

from

a

trace

to

0.0

6 o

z g

old

p

er

ton,

and

eig

ht

had

from

0.0

1 to

0

.13

perc

ent

cop

pe

r.

Ano

ther

ch

ip

sam

ple

con

tain

ed

0

.3

oz

gold

p

er

ton.

Thr

ee

chip

an

d on

e sele

ct

sam

ple

from

th

e

quart

z le

nse

s an

d ve

ins

had

no

sig

nific

ant

valu

es.

The

40-f

t-lo

ng

segm

ent

of

shea

r zo

ne

has

550

ton

s a

vera

gin

g 0.0

5

oz

gold

p

er

ton

an

d 0

.7

oz silve

r pe

r to

n.

One

sele

ct

sam

ple

of

qu

art

z d

id

no

t co

nta

in

any

gold

o

r silver.

Two

chip

sa

mpl

es of

quart

z d

id

no

t co

nta

in

any

gold

o

r silver.

Page 9

Table

2.--

Summ

ary

of m

ines a

nd p

rosp

ects

in

the A

ndrews M

ount

ain,

Ma

zour

ka,

and

Paiute R

oadless

Areas Continued

Map

No.

Name

Summ

ary

Work

ings

and

prod

ucti

onRe

sour

ce/s

ampl

e data

39

Plat

ta B

lanca

Vert

ical

to

steeply s

outhwest d

ipping b

edded

limestone

strikes

N. 30°

W.

A nearly c

onco

rdan

t qu

artz

vei

n an

d a

shea

r zone 1

.8 a

nd 1

.3 f

eet

thic

k, re

spec

tive

ly,

were

not

expo

sed

outside

of

the

exca

vati

on.

40

Zincite

Thin

ly b

edde

d, siliceous,

iron-

and

mang

anes

e-st

aine

d limestone

strikes

northw

est

and

dips 2

2° t

o 65°

SW.;

locally

recr

ysta

lliz

ed.

Bedd

ing-

plan

e qu

artz

vei

ns

2 in

. thick

contain

fine

-grained d

isseminated

galena

and

sphalerite i

n a

zone

2.8 f

t thick.

Shea

r zo

nes

that

str

ike

N. to

N.

20°

W. cr

ossc

ut t

he a

rea

and

offset t

he q

uartz

veins

a few

feet

.

41

Unknown

I/

Iron

-sta

ined

quartz

monz

onit

e co

ntai

ns specular

(21,

11

, 75)

hema

tite

and

localized o

ccurrences o

f li

moni

te-

stained

gouge.

42

Mont

e Cr

isto

Iron

-sta

ined

quartz

monz

onit

e co

ntai

ns d

isse

mina

ted

hematite,

weathered

pyri

te,

and

quartz p

ods.

43

John

nie

No.

1 Pink-white a

plit

e di

kes, quartz v

eins,

and

green-

brown

diabase

dikes

form

a no

rth-

tren

ding

dike

swarm

in q

uartz

monzonite.

Ch

alco

pyri

te,

mala

chit

e,

and

azurite

are

asso

ciat

ed w

ith

the

veins

and

dike

s in small, randomly d

istr

ibuted p

ods

wher

e iron s

tain

is

most

intense.

44

Unknown

I/

Iron

-sta

ined

quartz

vein

s and

an a

plite

dike i

ntru

de

(28/29,

IT,

35)

quar

tz m

onzonite.

45

Iron W

edge

Diabase

and

apli

te d

ikes

wit

h mi

lky

quartz v

eins

are

as t

hick a

s 2.

0 ft a

nd t

rend

north-northeast

acro

ss q

uartz

monz

onit

e.

Some p

arts o

f the

200-

ft-

to 6

00-f

t-lo

ng d

ikes a

re h

ighly

iron stained.

46

Cali

forn

ia Rose

Appr

oxim

atel

y 1,000

ft s

eparates t

wo n

orth

east

- No

. 2

trending n

orth

west

-dip

ping

she

ar z

ones

in

qua

rtz

monz

onit

e.

The

shea

rs a

re f

illed wi

th k

aoli

nite

, brecciated v

ein

quartz,

and

as m

uch

as 30 p

erce

nt

limonite.

The

larger s

hear

zone

is a

bout

210

ft

long a

nd r

ange

s fr

om 3

to

10 f

t thick, bu

t averages

abou

t 4

ft t

hick

.

An ad

it 1

3 ft l

ong

and

four p

its.

Two

adit

s totalling

96 f

t in

length,

one

inclined s

haft

22

ft

deep,

and

seve

n pi

ts.

Two

pits

, both a

bout

18

ft w

ide,

10 f

t long,

and

3 ft d

eep

with

appr

oxim

atel

y 1

ton

of l

imonit

e-

goug

e material stockpiled.

Two

pits,

one

expo

ses

quar

tz

monzonite

and

the

othe

r a

12-ft-

lo

ng,

6-ft-wide

quartz p

od.

Eigh

t pi

ts.

Two

small

pits in

the q

uart

z veins.

Thre

e sm

all

pits i

n the

aplite d

ike.

One

tren

ch 1

8 ft l

ong

and

seve

n pits.

A 9-ft-wide

by 6

-ft-

long

pit

and

a 15

-ft-

long

tre

nch

lead

into

a 3-ft-long

adit.

Three

of t

he f

our

chip

samples c

onta

ined

a

trace

gold

; on

e al

so h

ad a

trace l

ead.

One

grab sample c

onta

ined

0.4

oz

silv

er

per

ton.

A quartz v

ein

cont

ains

450

ton

s av

erag

ing

1.1

oz silver p

er t

on,

2.9

percent

lead

, an

d 4.

6 pe

rcen

t zi

nc.

No si

gnif

ican

t va

lues

in st

ockp

ile

samples

from

either

pit.

A chip sa

mple

fro

m across th

e quartz p

od

assa

yed

a trace

gold

and

a grab s

ample

assa

yed

0.03

oz

gold p

er t

on.

A 4-

ft c

hip

sample f

rom

across a

quartz

vein c

onta

ined

0.3

3 percent

copper.

Two

sele

ct s

ampl

es o

f fr

agme

nts

of ir

on-

and

copper-stained q

uart

z mo

nzon

ite

had

1.30

and

0.28

percent c

opper.

Five

oth

er

sele

ct a

nd c

hip

samp

les

cont

aine

d no

si

gnif

ican

t va

lues

.

Four g

rab

samples

and

one

chip s

ampl

e co

ntai

ned

no s

ignificant v

alue

s.

Three

of t

he e

ight

samples fr

om d

ikes

and

vein

s co

ntai

ned

from

1.0

to

2.7

oz

silv

er p

er t

on.

Five

chi

p samples

and

one

grab s

ampl

e co

ntai

ned

no s

igni

fica

nt v

alue

s.

Page 10

Tab

le

2.--

Sum

mar

y of

min

es

and

pro

spe

cts

in

the

A

ndre

ws

Mo

un

tain

, M

azou

rka,

an

d P

aiu

te

Roa

dles

s A

reas

Contin

ued

Map

N

o.Na

meSu

mm

ary

Wor

king

s an

d p

rod

uct

ion

Res

ourc

e/sa

mpl

e d

ata

47 48

Pyrite

E

xten

sensi

on

2/

Geo

rge

III

49M

an!a

n N

os.

50 51

Unk

now

n I/

(2

9,

11,

75

)

Old

R

iver

Arr

astr

e-

Bla

ck J

ack

Gol

d N

os.

T^T

O27~

Two

4-f

t-th

ick

quart

z-lim

onite

vein

s ar

e p

art

ly

expo

sed

for

240

ft

in

quart

z m

onzo

nite

. Th

e ve

ins

str

ike

N

. 40°-

66°

U.

and

dip

3

0°-

45

° M

E.

A nort

h-t

rendin

g

shea

r zo

ne is

ex

pose

d fo

r ove

r 1,

000

ft,

aver

ages

' 6

ft th

ick,

and

dip

s 60

° SW

. M

ost

of

the

zo

ne is

co

mpo

sed

of

altere

d

quart

z m

onzo

nite

, w

ith

va

rie

d

pa

rts

of

daci

te

dik

es

and

qu

art

z ve

ins

as th

ick

as

4 ft.

Lo

caliz

ed

ar

eas

alon

g th

e

zone

als

o co

nta

in

as

muc

h as

3

perc

ent

specu

lar

he

ma

tite

, m

agnetit

e,

limonite,

and

ma

lach

ite

sta

in.

Qua

rtz

str

ingers

an

d po

ds

a fe

w

inch

es

thic

k

and

as

long

as

5 ft;

they

cro

p o

ut

in w

ide

ly

spac

ed

loca

les

in

quart

z m

onzo

nite

. Q

uart

z is

als

o

ass

oci

ate

d w

ith

sh

ear

zone

s th

at

are

as th

ick

as

20 ft

. Th

e q

ua

rtz

is iron

sta

ine

d

and

has

fra

ctu

re fillin

gs

of

ma

lach

ite,

ch

ryso

co

lla,

and

trace

s of

azu

rite

.

Sec

onda

ry calc

ite

and

pyrite

altere

d

to lim

on

ite

an

d h

em

atit

e

in

quart

z ar

e fo

und

in

wea

ther

ed q

ua

rtz

monzo

nite

.

Qua

rtz

mon

zoni

te is

cu

t by

nu

mer

ous

no

rth

- to

n

ort

hw

est

-tre

nd

ing

, n

ea

rly

ve

rtic

al

diab

ase

dik

es,

fa

ults,

and

quart

z ve

ins.

Th

e la

rge

r str

uctu

res

can

be

tra

ced

fo

r se

vera

l m

iles

and

are

10

ft th

ick

or

mor

e in

p

lace

s.

The

fau

lts co

nta

in

vario

us

amou

nts

of

hig

hly

cl

eave

d co

untr

y ro

ck,

iro

n-s

tain

ed

go

uge,

an

d q

ua

rtz

vein

s.

The

larg

er

vein

s ar

e 1

to

4 ft t

hic

k

and

can

be tr

ace

d fo

r as

fa

r as

15

0 ft

. Th

e q

ua

rtz

is ty

pic

ally

mas

sive

an

d m

ilky

wh

ite

, b

ut

part

s a

re iro

n

sta

ine

d

and

conta

in d

iscre

te

ble

bs

of

pyrite

, chalc

opyrite

, ch

ryso

co

lla,

and

ma

lach

ite.

An

11

-ft-

lon

g adit

and

two

pi t

s.

Fiv

e pits.

Sev

en

smal

l pits

and

an 1

1-f

t-

deep

shaft w

ith

3.5

- an

d 25-f

t-

long d

rift

s.

Thr

ee

shallo

w pits.

A 2,5

00-f

t-lo

ng

segm

ent

of

a sh

ear

zone

ha

s be

en e

xplo

red

by

te

n

sh

aft

s,

eig

ht

ad

its,

21

pits,

and

two

tre

nch

es.

U

nder

grou

nd w

ork

ings

tota

l 1,

222

ft;

the

lo

ngest

ad

it

is

337

ft.

Sm

alle

r ne

arby

ve

ins

or

dik

es

have

tw

o adits

and

fou

r pits o

r tr

en

che

s on

th

em.

Abo

ut

6,7

00

to

ns

of

ind

ica

ted

an

d in

ferr

ed

su

beco

nom

ic

reso

urc

es

havi

ng

a w

eig

hte

d

aver

age

of

0.0

8

oz

gold

g

old

p

er

ton

a

re

in

the

quart

z ve

ins.

One

of

six

ch

ip

sam

ples

fr

om

the

sh

ear

zone

co

nta

ined

1.8

oz

silver

pe

r to

n,

the

o

the

r sa

mpl

es

had

no sig

nific

ant

valu

es.

E

ast

of

the

sh

ear

zone

a

chip

sa

mpl

e of

iro

n-s

tain

ed

quart

z m

onzo

nite

co

nta

ine

d 0

.5

oz silver

per

ton

an

d 0.7

3 perc

ent

cop

pe

r.

Fifte

en chip

, gra

b,

and

se

lect

sam

ples

w

ere

take

n fr

om quart

z ve

ins

and

shea

r zo

nes.

M

ost

sam

ples

co

nta

ine

d

a tr

ace

of

gold

, silve

r,

and

cop

pe

r.

One

sa

mpl

e co

nta

ine

d 0

.18

oz

gold

p

er

ton,

an

oth

er

had

0.2

4 perc

ent

cop

pe

r.

A sele

ct

sam

ple

from

a

25-t

on

sto

ckp

ile co

nta

ine

d

0.0

2

oz

gold

pe

r to

n,

0.9

oz

silver

pe

r to

n,

and

5.2

p

erc

en

t co

pp

er.

Thr

ee

grab

sa

mpl

es

of

iro

n-s

tain

ed

ve

in

qu

art

z,

limonite,

and

altere

d quart

z m

onzo

nite

fr

om

th

e pits

con

tain

ed

no

sig

nific

ant

valu

es.

The

pa

rt of

the

sh

ear

zone

exp

osed

be

twee

n th

ree

shafts

has

a to

tal

of

25,0

00 t

ons

of

ind

ica

ted

an

d in

ferr

ed

su

beco

nom

ic

reso

urc

es

with

a

weig

hte

d

aver

age

grad

e of

0.0

4 o

z gold

p

er

ton.

Abo

ut

6,8

00

to

ns

of

this

re

sourc

e

in

the

vic

inity

of

sha

fts

5 an

d 6

aver

ages

0.0

3 o

z gold

p

er

ton;

2,00

0 to

ns

near

sh

aft

7

aver

age

0.0

6

oz

go

ld

pe

r to

n.

Page 11

Tab

le

2.--

Sum

mar

y of

min

es

and

pros

pect

s in

th

e A

ndre

ws

Mou

ntai

n,

Maz

ourk

a,

and

Pai

ute

Roa

dles

s A

reas

Contin

ued

Map

N

o.Na

me

Sum

mar

yW

orki

ngs

and

pro

du

ctio

nR

esou

rce/

sam

ple

data

52

Blu

e Bo

y A

nort

heast

-tre

ndin

g

shea

r zo

ne

dip

s-n

ort

hw

est

and

ra

nges

fro

m 0

.5 to

2.

0 ft

thic

k in

gra

nodio

rite

. Th

e sh

ear

zone

is

com

pose

d o

f dis

contin

uous

quart

z ve

ins

and

kao

liniz

ed

, lim

on

ite-s

tain

ed

, a

ltere

d

coun

try

rock

. A

t se

vera

l lo

catio

ns,

th

e quart

z co

nta

ins

min

or a

mou

nts

of

ma

lach

ite,

azu

rite

, an

d ch

ryso

colla

.

53

Old

R

iver

A

nort

h-t

rendin

g,

3- to

5

-ft-

thic

k

shea

r zo

ne is

A

rras

tre

s m

ostly

tra

ceable

fo

r 15

3 ft.

Its m

argi

ns

have

O

wlc

orru

ga

ted

cle

avag

e su

rfac

es

alon

g so

me

pa

rts.

Cou

ntry

ro

ck is

quart

z m

onzo

nite

. Th

e sh

ear

zone

is

com

pose

d m

ostly

of

alte

red

co

un

try

rock

, lim

on

ite

str

ing

ers

, an

d 2-

. to

12-in.-

thic

k,

mas

sive

to

bre

ccia

ted q

uart

z st

ringers

an

d po

ds.

In

som

e ar

eas

of

the

shea

r zo

ne,

chry

soco

lla is

finely

di

ssem

inat

ed o

r fo

und

as fr

act

ure

fillin

gs.

54

Gol

d Bu

g N

os.

A 0

.5-m

i-lo

ng

, nort

hw

est

-tre

ndin

g

shea

r zo

ne1

and

2com

posed o

f a

ltere

d a

nd b

recc

iate

d c

hlo

rite

sc

his

t an

d cl

ay

fault

goug

e is

fr

om 0

.5 t

o

5 ft th

ick

in

quart

z m

onzo

nite

. Is

ola

ted

quart

z ve

inle

ts

in

the

shea

r zo

ne

are

6 in

. th

ick

and

as

long

as

3 ft

long.

The

quart

z co

nta

ins

finely

di

ssem

inat

ed

spec

ular

hem

atite

an

d pyrite

with

mala

chite

and

azu

rite

st

ain

s an

d fr

act

ure

fillin

gs.

A 1

44

-ft-

lon

g a

dit,

a 35-f

t-

long

tr

ench

, an

d five

p

its.

Two

shafts,

37

and

17

ft d

eep,

tw

o a

dits,

and

seve

n p

its.

The

ad

its

are

28 a

nd 2

85 f

t lo

ng

with

80

-ft-

lon

g d

rift

. Th

e de

epes

t sh

aft

in

ters

ect

s th

e 8

0-f

t-lo

ng

drift o

f th

e lo

ng

est

ad

it.

Seve

n adits

fr

om 1

2 to

14

0 ft

lo

ng,

a ca

ved

ad

it,

a 3

7-f

t-

deep

sh

aft w

ith

a 4

5-f

t-lo

ng

d

rift

, tw

o ca

ved

shafts,

on

e in

clin

ed sh

aft 1

0 ft

de

ep,

and

20 p

its.

Thre

e gr

ab a

nd f

ive

ch

ip

sam

ples

wer

e co

llect

ed.

A se

lect

sa

mpl

e fr

om a

1

ton

stock

pile

had

1

perc

ent

copp

er.

Min

era

lized quart

z-ve

in flo

at

from

the

tr

ench

con

tain

ed

0.49

per

cent

cop

per.

A

grab

sa

mpl

e of

quart

z float

from

a

pit c

onta

ined

0.9

0 pe

rcen

t co

pper

and

6.

6 oz

silv

er

per

ton.

A m

ine

raliz

ed

part

of

the

shea

r zo

ne

is

estim

ated

to

con

tain

10

,000

ton

s quart

z m

onzo

nite

, q

ua

rtz,

an

d go

uge

havi

ng a

n av

erag

e gr

ade

of

0.20

per

cent

co

pper

.

Twen

ty o

f th

e 72

chip

, se

lect

, or

grab

sa

mpl

es f

rom

the

sh

ear

zone

, quart

z ve

ins,

st

ock

pile

s,

or

dum

ps

assa

yed

from

0.

01

to

0.96

oz

gold

per

to

n;

29 o

thers

ha

d a

tra

ce of

gold

. Th

e se

lect

sa

mpl

es

with

go

ld

assa

ys c

lose

ly p

ara

llele

d

the

chip

sa

mpl

e re

sults.

Thre

e se

lect

sa

mpl

es

had

0.6

, 1.9

, an

d 4.

6 oz

silv

er

per

ton

. E

igh

t se

lect

and

tw

o ch

ip

sam

ples

con

tain

ed c

oppe

r ra

ngin

g fr

om

0.12

to

1.7

perc

ent

and

one

had

8.40

p

erc

en

t.

The

valu

es a

re l

oca

lize

d in

sm

all,

un

defin

eabl

e po

cket

s o

r sh

oots

al

ong

the

shea

r zo

ne,

thus

re

sour

ces

coul

d no

t be

det

erm

ined

.

Page 12

Table 2. Summary o

f mi

nes

and

pros

pect

s in

the A

ndrews M

ountain, Ma

zour

ka,

and

Paiute R

oadl

ess Areas Continued

Map

No.

Name

Summar

yWo

rkin

gs a

nd

prod

ucti

onRe

sour

ce/s

ampl

e data

55Eureka

Consolidated

Quar

tz M

ine

56

Gwen

gr

oup

2J

57Lu

cky

La

rry

grou

p

Nort

h-t

rendin

g

shea

r zo

nes

as th

ick

as

9 ft

and

50-f

t-lo

ng cu

t co

ars

e-g

rain

ed q

ua

rtz

monzo

nite

. Th

e zo

nes

are

co

mpo

sed

of

rock

fr

agm

ents

, go

uge,

dis

contin

uous

diab

ase

dik

es,

an

d d

isco

ntin

uo

us,

in

terlaced

qu

art

z po

ds

and

str

ing

ers

0

.5 in

. to

1.

ft th

ick.

Som

e of

the

quart

z co

nta

ins

finely

dis

sem

inate

d pyrite

, chalc

opyrite

, lim

on

ite

, an

d ch

ryso

co

lla.

A sw

arm

of

dark

-gre

en,

ap

ha

nitic

to

sc

his

tose

di

abas

e d

ike

s,

1-

to 8

-ft

thic

k

and

tan-p

ink

aplit

e

dik

es

l-,,

to 2.5

-ft-

thic

k str

ike

pre

dom

inantly

n

ort

he

ast

in

q

ua

rtz

monzo

nite

. A

de

fin

ite

pattern

of

nort

hw

est

-tre

ndin

g d

ike

s is

als

o vis

ible

. Th

e dik

es

pa

rtly

o

r to

tally fill

shea

r zo

nes,

w

hich

ha

ve

schis

tose

, chlo

ritized,

alte

red

co

untr

y ro

ck,

goug

e,

and

dis

con

tinu

ou

s,

fra

ctu

red

, iro

n-s

tain

ed

quart

z ve

ins.

Th

e la

rgest

shea

r zo

ne is

ex

pose

d fo

r o

ver

500

ft a

nd

aver

ages

50

ft

thic

k.

Blo

cky

med

ium

-gra

ined

q

ua

rtz

mon

zoni

te is

cu

t by

nu

mer

ous

N.

20°

E.-

to

N

. 20

° W

.-str

ikin

g

shea

r zo

nes,

quart

z ve

ins,

an

d a

plit

e

and

diab

ase

dik

es.

A

ll of

the

str

uctu

res

are

dis

con

tinu

ou

s an

d irre

gula

r e

sp

ecia

lly

the

la

rger

ones

th

at

are

ove

r 3

.0 ft th

ick.

The

smalle

r on

es th

at

are

as

thic

k

as

1.0

ft a

re tr

ace

ab

le fo

r as

fa

r as

60

ft.

Mos

t of

the

q

ua

rtz

is m

ilky

white

with

dis

cre

te

area

s of

ch

alc

op

yrite

, w

hich

is

finely

dis

sem

inate

d,

or

in ble

bs

and

larg

e

aggre

gate

mas

ses.

C

hry

soco

lla

and

ma

lach

ite

are

a

sso

cia

ted

w

ith

the

chalc

opyrite

.

A 4

5°-

inclin

ed

shaft

104

ft

deep

w

ith

a

22-f

t-lo

ng d

rift

at

its

bo

tto

m,

seve

n pits,

and

thre

e

ad

its to

tallin

g

125

ft of

deve

lopm

ent.

Sev

eral

m

ore

wo

rkin

gs

on

the.

pro

pe

rty

lie

outs

ide

the

ro

adle

ss

area

bo

unda

ry

and

wer

e n

ot

exam

ined

. Q

uart

z str

ingers

se

lective

ly m

ined

wer

e re

po

rte

d to

ha

ve

aver

aged

3

.7

oz

gold

pe

r to

n.

Sp

ecific

p

rod

uct

ion

da

ta

are

un

know

n (K

no

pf,

19

14,

p.

12

0).

Two

adits

20

- to

45-f

t-lo

ng

and

37 pits.

A ca

ved

adit,

12 adits

ran

gin

g

from

10

to

28

0 ft lo

ng,

13 pits,

and

two

trench

es.

Tw

en

ty-n

ine

chip

, gra

b,

or

sele

ct

sam

ples

w

ere

co

llecte

d

from

quart

z str

ing

ers

an

d po

ds,

shea

r zo

nes,

sto

ckp

iles,

and

dum

ps.

Eig

ht

sam

ples

co

nta

ine

d dete

ctable

g

old

; se

ven

of

thes

e ra

nged

fr

om

0

.01

to

0

.06

oz

gold

p

er

ton,

and

the

oth

er

had

0.1

3

oz.

Th

e hig

hest

silve

r va

lue

s in

tw

o sa

mpl

es

wer

e 1.

1 an

d 1

.0

oz

pe

r to

n.

Two

chip

an

d tw

o sele

ct

sam

ples

als

o

assa

yed

0.1

1,

0.7

0,

0.2

5,

and

2.2

perc

ent

cop

pe

r,

respectively

. M

ost

of

the

e

asily

acc

ess

ible

m

inera

lized

quart

z ha

s be

en

rem

oved

. R

emai

ning

gold

-bearing quart

z is

of

extr

eme

smal

l si

ze

and

appare

nt

restr

icte

d

occ

urr

en

ce.

A m

inera

lized

segm

ent

of

the

la

rge

st

zone

co

nta

ins

1,10

0 to

ns

of

ind

ica

ted

an

d in

ferr

ed

su

beco

nom

ic

reso

urc

es.

Th

e av

erag

e gr

ade

is 0.7

9 o

z silver

pe

r to

n.

Fifty

-one

sam

ples

fr

om

the

str

uctu

res

and

num

erou

s sm

all,

h

igh

-gra

de

sto

ckpile

s in

dic

ate

co

pper

and

silve

r ar

e is

ola

ted

in

sm

all

po

cke

ts.

A m

inera

lized

segm

ent

of

a zo

ne

conta

ins

32,0

00 t

on

s of

qu

art

z m

on

zon

ite,

qu

art

z,

and

goug

e ave

ragin

g 0.2

4 p

erc

ent

cop

pe

r.

Abo

ut 2

5 to

ns

from

va

rio

us

sto

ckp

iles in

th

is

area

ha

ve

an

aver

age

grad

e of

0.6

1

perc

ent

cop

pe

r.

Min

era

liza

tio

n

was

lo

ca

lize

d,

and

som

e re

str

icte

d

area

s w

ith

g

old

-be

arin

g quart

z e

xis

t.