Author: Brown, C. Ervin (Clarence Ervin), 1925- / Spatial Coverage: Oregon - Yale University Library GeoBlacklight Search Results

Start Over Author Brown, C. Ervin (Clarence Ervin), 1925- Spatial Coverage Oregon

1. Geologic map of the Canyon City quadrangle, Northeastern Oregon [cartographic material]

1966. 2012-09-28T18:34:13Z. 2013-03-18T22:20:40Z. Brown, C. Ervin (Clarence Ervin), 1925-. The Survey. English. Public. Oregon and U.S.

2. Geologic map of the Mount Vernon quadrangle, Grant County, Oregon [cartographic material]

1966. 2012-01-12T21:27:25Z. 2012-03-05T17:32:45Z. Brown, C. Ervin (Clarence Ervin), 1925-. U.S. Geological Survey. English. Public. Oregon and Grant County.

3. Geologic map of the pre-Tertiary rocks in the eastern Aldrich Mountains and adjacent areas to the south, Grant County, Oregon [cartographic material]

1977. 2013-11-15T16:25:41Z. 2013-11-18T19:18:55Z. Brown, C. Ervin (Clarence Ervin), 1925-. The Survey. English. Public. Oregon, Grant County, Aldrich Mountains, and U.S.