Moraines and glacial erratics near Junction Butte in northeast Yellowstone National Park

By Yellowstone Volcano Observatory 2003 (approx.)

grassy field with moss-covered boulders, and forested hills and snowy mountains in the distance

Detailed Description

Moraines and glacial erratics (boulders) near Junction Butte in northeast Yellowstone National Park. Cosmogenic age dating of these erratics was used to determine when glaciers retreated from the Yellowstone Plateau. National Park Service photo by Jo Suderman, June 2003 (https://www.nps.gov/features/yell/slidefile/geology/glacial/Inside%20Ye…).

Sources/Usage

Public Domain.