John Hopkins

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Recent Activity

When	What	Who	Comment
October 19, 2018	Messages in Stone: Colorado’s Colorful Geology - diff	John Hopkins	Added new cover
October 19, 2018	Messages in Stone: Colorado’s Colorful Geology - expand	John Hopkins
October 19, 2018	Messages in Stone: Colorado’s Colorful Geology - expand	John Hopkins	Added 2003 Colorado Geological ... edition of Messages in Stone.
October 19, 2018	/people/john_hopkins	John Hopkins	Created new account.