1973. 2013-04-18T15:33:04Z. 2013-05-02T15:45:10Z. Reed, John Calvin, 1930-. U.S. Geological Survey. English. Public. Colorado and Jefferson County.
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1972. 2013-04-17T20:17:22Z. 2013-05-02T15:44:47Z. Reed, John Calvin, 1930-. U.S. Geological Survey. English. Public. Colorado and Jefferson County.