1906. 2021-07-29T17:40:22Z. 2021-07-29T17:40:22Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Idaho Springs (Colo.), Clear Creek County (Colo.), Colorado, Clear Creek County, Clear Creek County., and Idaho Springs.
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1881. 2002-07-15T19:58:59Z. 2022-11-15T22:35:11Z. Lowe, Theo. H., cartographer. publisher not identified,Thos. Hunter, photo lith., 716 Filbert St. English. cartographic image. Public. Clear Creek County (Colo.), Colorado, and Clear Creek County.