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312. Havre Yale Public content 1904. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
313. Havre, Montana, 1953 Yale Public content 1976. 2012-02-23T16:46:42Z. 2015-10-21T15:30:44Z. United States. Army Topographic Command. Interior--Geological Survey. English. Public. Montana.
314. Hay Creek Yale Public content 1912. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
315. Hebgen Dam, Mont.-Idaho Yale Public content 1954. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Idaho and Montana.
316. Helena Yale Public content 1899. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
317. Helena mining region, Montana [cartographic material] Yale Public content 1919. 2012-04-05T20:29:38Z. 2012-05-03T15:37:23Z. Ropes, Leverett S. (Leverett Smith), 1868-1953. L.S. Ropes & Margurite Greenfield. English. Public. Montana, Lewis and Clark County., and Montana, Southwestern.
318. Helena, Mont Yale Public content 1954. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
319. Helena, Mont Yale Public content 1954. 2011-12-12T21:31:15Z. 2022-03-29T20:39:55Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana.
320. Helena, Montana [cartographic material]. Yale Public content 1946. 2021-01-20T18:06:46Z. 2021-01-23T04:01:38Z. publisher not identified. English. cartographic image. Public. Helena (Mont.), Montana, and Helena.