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 Brushy Butte
Aerial photograph of Brushy Butte, California.

Quick Facts

Brushy Butte forms a small shield complex immediately east of Timbered Crater, south-southeast of the Medicine Lake highlands. The Brushy Butte complex has produced a broad apron of basaltic lava flows with fresh-looking flow features that extends preferentially down the regional gradient to the south as far as the Fall River valley. The lavas of Brushy Butte are overlain by Giant Crater lava flow, which has been dated at 12,4300. Soil development and revegetation suggested a Holocene age similar to that of Hat Creek flow to the south. The Hat Creek flow to the south of Brushy Butte has similar soil development and revegetation and has been dated at 24,000 +/- 6000 years. Brushy Butte and other young vents between Medicine Lake and Lassen volcanoes could be of latest Pleistocene age.
Location: California, Shasta County
Latitude: 41.178° N
Longitude: 121.443° W
Elevation: 1,174 (m) 3,852 (f)
Volcano type: shield volcano
Composition: basalt