2003. 2003-04-04T21:12:39Z. 2011-03-03T23:23:04Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Montana, Lewis and Clark County, and Meagher County.
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2003. 2003-12-19T20:27:20Z. 2011-03-03T23:26:44Z. Geological Survey (U.S.). U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by USGS Information Services. English. Public. Montana and Lewis and Clark County.