1919. 2011-05-25T19:58:01Z. 2015-10-21T14:59:57Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Lewis and Clark County (Mont.), Montana, and Teton County (Mont.).
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1903. 2011-05-25T20:00:54Z. 2015-10-21T14:59:57Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Lewis and Clark County (Mont.), Montana, and Teton County (Mont.).
1907. 2014-08-06T15:58:45Z. 2023-10-25T17:04:31Z. Van Hook, John C., cartographer. Lithographed by Lord Baltimore Press. English. Public. Lewis and Clark County (Mont.).