Excerpt from the MBMG Geological Map of the Gardiner 30’ x 60’ Quadrangle

By Yellowstone Volcano Observatory 1999 (approx.)

geological map with colors depending different rock units

Detailed Description

Excerpt from the Geological Map of the Gardiner 30’ x 60’ Quadrangle, South-Central Montana, by Berg and others (1999), focused on Devil’s Slide (colorful blue-green stripes at center of map excerpt). Full unit description and map available online as Montana Bureau of Miles and Geology Open File No. 387 (https://mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11233&#gsc.tab=0).

Sources/Usage

Public Domain.

Montana Bureau of Miles and Geology Open File No. 387 (https://mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11233&#gsc.tab=0).