Recent Volcanic Activity in SW Utah

Simplified map of volcanic fields in the western US that have been active during the Quaternary. http://geosphere.geoscienceworld.org/content/13/2/391/figures-only

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An Introduction to Lunar Volcanic Activity

Small lunar dome. The crater on the top is an impact crater. http://blogs.discovermagazine.com/badastronomy/2011/12/12/tiny-lunar-volcanoes/