Red Cones viewed from atop Mammoth Mountain toward the SW
Detailed Description
The Red Cones are in lower left, and the valley in lower right is the Middle Fork of the San Joaquin River. Eruptions about 5,000 years ago built the two cinder cones and generated a small lava flow that spilled about 1.5 km (1 mi) down the valley wall.
Sources/Usage
Public Domain.