Jim McClure-Jerry Peak Wilderness area in central Idaho

By Yellowstone Volcano Observatory May 23, 2017

Barren and rocky mountainsides at sunset with some clouds in the distance

Detailed Description

The geology of the Jim McClure-Jerry Peak Wilderness area in central Idaho includes the Challis volcanics, which erupted about 52–45 million years ago. Photo by Matt Liedecker, Bureau of Land Management, May 23, 2017 (https://www.flickr.com/photos/blmidaho/34808808006/).

Sources/Usage

Public Domain.