1. Geologic map of the Rough Gulch quadrangle, Rio Blanco and Moffat Counties, Colorado [cartographic material] Yale Public content 1974. 2012-04-26T15:12:28Z. 2012-05-03T15:42:03Z. Hail, William James, 1922-. The Survey. English. Public. Colorado, Rio Blanco County, and Moffat County.