1973. 2012-04-09T13:15:22Z. 2012-04-16T15:47:46Z. Bryant, Bruce, 1930-. The Survey. English. Public. Colorado and Jefferson County.
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1972. 2013-04-17T20:21:38Z. 2013-05-02T15:44:47Z. Bryant, Bruce, 1930-. U.S. Geological Survey. English. Public. Colorado, Jefferson County, and Evergreen.