Author: Walker, George Walton, 1921- / Publisher: Dept. of the Interior, U.S. Geological Survey - Yale University Library GeoBlacklight Search Results

Start Over Author Walker, George Walton, 1921- Publisher Dept. of the Interior, U.S. Geological Survey

1. Geologic map of Oregon

1969. 2012-10-31T18:54:05Z. 2012-10-31T18:54:05Z. Walker, George Walton, 1921-. Dept. of the Interior, U.S. Geological Survey. English. Public. Oregon.

2. Geologic map of Oregon east of the 121st meridian [cartographic material]

1977. 2013-08-20T15:53:28Z. 2013-08-30T19:16:03Z. Walker, George Walton, 1921-. Dept. of the Interior, U.S. Geological Survey. English. Public. Oregon, Eastern.

3. Reconnaissance geologic map of the Adel quadrangle, Lake, Harney, and Malheur counties, Oregon [cartographic material]

1965. 2012-09-28T18:30:29Z. 2013-03-18T22:20:40Z. Walker, George Walton, 1921-. Dept. of the Interior, U.S. Geological Survey. English. Public. Oregon, Lake County, Harney County, and Malheur County.