UMass Amherst geosciences professor Isaac Larsen standing on the erosional escarpment at Stinson Prairie, Iowa. (IMAGE)

University of Massachusetts Amherst

UMass Amherst geosciences professor Isaac Larsen standing on the erosional escarpment at Stinson Prairie, Iowa.

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UMass Amherst geosciences professor Isaac Larsen standing on the erosional escarpment at Stinson Prairie, Iowa.

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UMass Amherst

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