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LASSEN VOLCANIC
Guidebook 1940 |
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UNITED STATES
DEPARTMENT OF THE INTERIOR
Harold L. Ickes, Secretary
19 
40
NATIONAL PARK SERVICE
Arno B. Cammerer, Director
CONTENTS
Cover (Eruption of Lassen Peak in 1915)
Geologic HistoryLassen Peak and Vicinity
Chaos Crags and Chaos Jumbles
Ancestral Mount Tehama
Cinder Cone Area
View from Lassen Peak
Wildlife
Fishing
Camping
Educational Activities
Administration
How to Reach the Park
Accommodations in the Park
What to Do and See
Historic Events
| 1820 | Arguello exploring party first to record and name Lassen Peak (St. Joseph's Mountain). |
| 1850-51 | Last lava flow from Cinder Cone. |
| 1864 | Helen Brodt, first white woman to climb Lassen Peak, made ascent with Major Reading. Lake Helen named for her. |
| 1906 | May 6. Lassen Peak and Cinder Cone National Monuments established. |
| 1914 | May 30. First known eruption of Lassen Peak since coming of white man. |
| 1915 | May 19 and 22. Major eruptions of Lassen Peak devastated large forest area. |
| 1916 | Lassen Volcanic National Pack created by act of Congress. |
| 1921 | Lassen Peak ceased to erupt and subsided into a state of quiescence. |
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Last Updated: 20-Jun-2010