1963. 2011-12-12T21:31:13Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
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1963. 2012-09-18T14:08:00Z. 2013-03-18T22:18:42Z. Geological Survey (U.S.). The Survey. English. Public. Montana, Roosevelt County, Richland County, and McCone County.
1963. 2012-09-21T15:40:58Z. 2013-03-18T20:28:22Z. Knopf, Adolph, 1882-1966. U.S. Geological Survey. English. Public. Montana, Lewis and Clark County, and Jefferson County.
4. Gilman, Mont
1963. 2011-12-12T21:31:14Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
1963. 2012-09-18T20:15:29Z. 2013-03-18T22:18:48Z. Schmidt, Robert George. The Survey. English. Public. Montana and Lewis and Clark County.
1963. 2011-12-12T21:31:23Z. 2022-03-29T20:39:56Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Idaho and Montana.
1963. 2011-12-12T21:31:25Z. 2022-03-29T20:39:57Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.