9 ene 1916 año - Lassen Volcanic National Park is established in California

Descripción:

All four volcanoes are in this park. They are called the Shield (Prospect Peak), plug dome (Lassen Peak), Cinder Cone, and Composite (Brokeoff Volcano) volcanoes. To see these volcanic sites, Lassen Volcanic National Park has both summer and winter weather activities. With over 150 miles of hiking trails, both day hiking and backpacking are popular summer activities. Winter most often begins as early as October doing snow play, snowshoeing, and backcountry skiing. Before the eruption of Mount St. Helens in 1980, Lassen Peak was the only Cascade volcano to have erupted in the 20th century. The currently active volcanic center, the “Lassen volcanic center,” of which Lassen Peak is a part, is within the park. The heat source (magma chamber) of active volcanism at the park yields remarkable hydrothermal features, like roaring fumaroles, mud pots, boiling pools, and thermal ground. These features are indicators of the ongoing potential for future volcanic eruptions in the Lassen volcanic center.

https://www.nps.gov/articles/nps-geodiversity-atlas-lassen-volcanic-national-park-california.htm
https://www.usgs.gov/volcanoes/lassen-volcanic-center/lassen-volcanic-national-park
book- End of Inocence page 20

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