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“Hey Bear” volcano, Wyoming, with Raggedtop Mountain in the background

August 2021 (approx.)

Detailed Description

“Hey Bear” volcano, Wyoming, with Raggedtop Mountain in the background. Hey Bear volcano is a small scoria cone that is about 1.3 million years old and that erupted over Eocene (~50 million-year-old) rocks (noted by yellow dotted line). Photo by Matthew Brueseke, Kansas State University, August 2021, used with permission.

Sources/Usage

Used with permission from Matthew Brueseke, Kansas State University.