Deer Mountain is a post caldera rhyolite that erupted

Deer Mountain is a post caldera rhyolite that erupted outside the Long Valley Caldera about 115,000 – 97,000 years ago.

Detailed Description

Deer Mountain is a post caldera rhyolite that erupted outside the Long Valley Caldera about 115,000 – 97,000 years ago.

Details

Image Dimensions: 325 x 218

Location Taken: US