Groundhog scoria cone in the Golden Trout Creek volcanic field, California
By California Volcano Observatory
2002 (approx.)
Detailed Description
Groundhog scoria cone, the youngest of the Golden Trout Creek volcanic field, and the source of a lava flow that traveled 6 km to the west down Golden Trout Creek. The cone erupted through light-colored Mesozoic granitic rocks of the Sierra Nevada batholith visible in the distance. Photo by Rick Howard, 2002 (courtesy of Del Hubbs, U.S. Forest Service).
Sources/Usage
Public Domain.