sump 3b

57

57

p.3810 m

100

sump 3

17

5

+7

-5

+7

+17

p.2806 m

12

13

p.2721 m

6

8

1.5

p.3260 m

12

p.3113 m

9

6

8

sump 2

p.2397 m

p.2500 m

p.2070 m

104

15

15

14

20

14

p.1500 m

5

19

12

13

11

24

p.1000 m4

16

Gouffre dePou Meyssen

p.782 m

10

8

13

18

4

315

p.500 m

1215

4

p.300 m

Secchi station

6

15

Gouffre deCabouy

31

Reseau de l’Ouysse, Gramat, France- Gouffre de Cabouy / Gouffre de Pou Meyssen -GPS location: N 44.7902 E 1.5844 (Gouffre de Cabouy)

N 44.7907 E 1.5931 (Gouffre de Pou Meyssen)

N 44.7877 E 1.6122 (Radio location)

Length: 5095 m Water depth: 100 m

p.xxx indicates penetration distance from the surface at the cavepool in meters

Surveyed by: Holger Amecke, Jutta Arens, Gloria Dossi, Mathew Gentile, Niko Gerdau, OsamaGobara, Irene Homberger, Maren Isigkeit, Chris Le Maillot, Andrea Marassich, JanMedenwaldt, Sergio Murgia, Jan Reimann, Danny Riordan, Christian Sandrini,Stephan Schlumbohm, Torsten Schnitter, Jörg Schwerdtfeger, Josef Spanyol,Zsolt Szilagyi, Lodovico Venturoli, Andrew Woodside 2009 – 2017

Drawn by: Osama Gobara, Torsten Schnitter (c) 2014 – 2017

With thanks to: Matthias Appel, Damaris Brunke, Danny Beiert, Sven Bertelmann, PetraClerx, Manuel Eickhoff, Franck Gentili, Christian Howe, Uli Kunz, StephanMatthies, Mike Miethke, Birgit Nischler, Norbert Nischler, Kasia Puchalska,Ute Roschanski, Stefan Schandelle, Georg Schmidt, Hervé Vilatte, ChrisWerner

Legendentrance floor step sumpwall overhang sandunsurveyed wall pitch claydebris ceiling step debriscross-section +15 chimney height blocks, breakdown

5 passage height -30 pit depth water flow2 waterdepth slope radio location

possible continuation boulder scalloppassage end, narrow water pebbles

N

0 40 80 120 160 200 m

1 : 2000

B.C.R.A. Grade 3B

Exploration history1971: Dive to 200m from Cabouy (Divers of Angouleme)

Dive to 130m downstream from Pou Meyssen (Divers of Brive)Dive to 275m downstream from Pou Meyssen (G. Franzciakis, C. Touloumdjian)

1974: Dive to 300m downstream and 275m upstream from Pou Meyssen (G. Franzciakis, C. Touloumdjian)1975: Dive to 510m downstream from Pou Meyssen (G. Franzciakis, C. Touloumdjian)

Connection Cabouy - Pou Meyssen (C. Touloumdjian)Dive to 630m upstream from Pou Meyssen (C. Touloumdjian)

1976: Dive to 850m upstream from Pou Meyssen (C. Touloumdjian)1978: Dive to 1200m upstream from Pou Meyssen - end of sump1 (C. Touloumdjian)

Dive to 2400m from Cabouy - start of sump 2 with 400m of dry passage after sump 1 (O. Isler, C. Magnin)Discover of ”Big Shunt” at 500m downstream from Pou Meyssen (C. Touloumdjian)

1979: Dive to end of sump 2 with 40m of diving passage in sump 2 (O. Isler, C. Magnin)Traverse Cabouy - Pou Meyssen (P. Penez, C. Touloumdjian)

1988: Principal survey second drypart to 2800m from Cabouy (Group ”Pou Meyssens 88”)1989: Principal survey second drypart to sump 3 and sump 3b at 3000m from Cabouy (Group ”Pou Meyssens 89”)

Connection sump 3 and sump 3b (M. Douchet, F. Poggia)1991: Dive to 120m and -35m into sump 3 (M. Douchet, F. Bernard)2000: Dive to 200m and -43m into sump 3 (R. Stanton, J. Mallinson)2001: Dive to 680m and -120m into sump 3 (R. Stanton)