Author: Hansen, Wallace R., 1920- / Publisher: U.S. Geological Survey - Yale University Library GeoBlacklight Search Results

Start Over Author Hansen, Wallace R., 1920- Publisher U.S. Geological Survey

1. Geologic map of the Haystack Rock quadrangle, Moffat County, Colorado [cartographic material]

1980. 2012-06-25T18:33:54Z. 2012-07-05T13:03:11Z. Hansen, Wallace R., 1920-. U.S. Geological Survey. English. Public. Colorado and Moffat County.

2. Geologic map of the Willow Creek Butte quadrangle, Utah-Colorado [cartographic material]

1961. 2012-09-12T18:00:38Z. 2013-03-18T22:17:58Z. Hansen, Wallace R., 1920-. U.S. Geological Survey. English. Public. Utah, Daggett County, Colorado, and Moffat County.

3. Geology of the Landsaw quadrangle, Kentucky / [cartographic material]

1963. 2011-05-17T15:34:02Z. 2012-02-14T00:28:16Z. Hansen, Wallace R., 1920-. U.S. Geological Survey. English. Public. Kentucky, Wolfe County, and Breathitt County.