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Cover of Yellowstone Volcano Observatory 2021 Annual Report

April 2022 (approx.)

Detailed Description

Front cover of the Yellowstone Volcano Observatory 2021 annual report, which includes a summary of earthquake, deformation, and geyser activity, as well as research investigations and other information. The report is freely available online at https://pubs.er.usgs.gov/publication/cir1494.

Sources/Usage

Public Domain.