Lassen VolcanicNational Park

By Jack T

Map

Special featuresSome special features are that some parts of Lassen have different temperaturesAll four types of volcanoes found in the entire world are represented in Lassen Volcanic National Park. Volcanoes found in the park include shield (Prospect Peak), plug dome (Lassen Peak), Cinder Cone (Cinder Cone), and Composite (Brokeoff Volcano) volcanoes.

GeographyLassen Volcanic’s Geography is Rocky soil and dense forest. This National Park is part of the ring of fire. Lassen peak is the worlds largest plug dome.

When did Lassen Volcanic become a national park?

The work to create the national park started

In 1906 when Theodore Roosevelt was

president and finished in 1916 when Woodrow Wilson was president. It was the eruption of

Lassen peak that finally generated

enough interest to make it a national

park.

How was it formed

The park was formed by Lassen Peak when it erupted in 1915. This blast traveled many miles till it stopped and cooled. Then from the lava more Volcano’s took form. They used to be just one now there is many.

Types of rocks

“1) hybrid black dacite lava containing (2)

undercooled andesitic inclusions, (3)

compositionally banded pumice with

dark andesite and light dacite bands, and (4)

unbanded light dacite.”

2004 382,2

74

2005 392,782

,006 377,3

612007 395,097

2008 388,7

41

2009 365,535

2010379,6

67

Visitors A Year

How is the land changing

There has been no eruptions since 1915 shortly before the park was created.

Environmental issues

Tourists visiting the park naturally erode some of the hiking trial; the park collects donations to help the hiking trials.

Sacramento Valley s polluting Lassen Volcanic from agriculture and manufacturing.

Toxic airborne including mercury deposited in the parks ecosystem at high levels, this is a potential wildlife and human health concern

TechnologyWeb Rangers: Offers and opportunity to enjoy the park from home

BibliographyWikipedia

nps.gov