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Structural map of the onset of the Yellowstone-Snake River Plain hotspot track

By Yellowstone Volcano Observatory 2020 (approx.)
Structural map of the onset of the Yellowstone-Snake River Plain hotspot track
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Detailed Description

Beginning of Yellowstone-Snake River Plain hotspot track and resulting northeasterly path of the ancestral Missouri River starting about 16.5 million years ago.  Modified from Hyndman D.W., and Thomas, R.C., 2020, Roadside Geology of Montana, Mountain Press Publishing, 464 p.

Sources/Usage

Public Domain.