Search results
Results from the WOW.Com Content Network
Aerial view of Mount Lassen with snow, early May 2018. Lassen Peak lies within Lassen Volcanic National Park, in Shasta County, California, 55 mi (89 km) east of the city of Redding. [4] Lassen Peak and the rest of the National Park area are surrounded by the Lassen National Forest, [5] which has an area of 1,200,000 acres (4,900 km 2). [6]
The Lassen area was first protected by being designated as the Lassen Peak Forest Preserve. Lassen Peak and Cinder Cone were later declared as U.S. National Monuments in May 1907 by President Theodore Roosevelt. [9] Starting in May 1914 and lasting until 1921, a series of minor to major eruptions occurred on Lassen.
Highest point; Elevation: 6,896 ft (2,102 m) NGVD 29 [1] Coordinates: 1]: Geography; Location: Lassen and Shasta counties, California, U.S.: Parent range: Cascade Range: Topo map: USGS Prospect Peak: Geology; Mountain type: Extinct Cinder cone: Volcanic arc: Cascade Volcanic Arc: Last eruption: 1666: Climbing; Easiest route: Trail hike: Cinder Cone is a cinder cone volcano in Lassen Volcanic ...
The last major eruptions of Lassen Peak occurred in April through June 1917, when a new crater was created at the summit of the mountain. Less explosive activity continued through 1921. [1] [24] The Smithsonian considers the eruption of Mount Lassen to have ended on June 29, 1917. [36]
The forest was first named the Lassen Peak Forest Reserve because of Lassen Peak, a volcano which is in the southernmost portion of the Cascade Range volcanoes. Mt. Lassen erupted with explosive force in 1915. The forest borders Lassen Volcanic National Park. The forest has two major river systems as well as many lakes, cinder cones and lava flows.
As part of Mount Tehama's main vent, Bumpass Hell is the result of fissures that tap the volcanic heat, thought to be a cooling mass of andesite, perhaps three miles (5 km) below the surface. It is named after Kendall Vanhook Bumpass, a cowboy and early settler who worked in the Lassen Peak area in the 1860s. Bumpass discovered the geothermal ...
The Chaos Crags consist of five small lava domes, made of rhyodacite, [14] which line up with the western edge of the Mount Tehama caldera. [15] The youngest part of the Lassen volcanic center's dome field [16] and the youngest domes in the Eagle Peak sequence, [14] they reach an elevation of about 1,800 feet (550 m) above their surroundings. [16]
Lake Helen in Lassen Volcanic National Park in June of 2024. Lake Helen is a glacial lake or a tarn occupying a cirque at around 8,200 feet (2,500 m) in Lassen Volcanic National Park. [1] The lake is located to the south of Lassen Peak and west of Bumpass Mountain in the Shasta Cascades region of Northern California.