1. Geologic map of the Craig 1° x 2° quadrangle, northwestern Colorado [cartographic material] Yale Public content 1976. 2013-09-17T18:48:21Z. 2013-09-25T21:09:47Z. Tweto, Ogden, 1912-1983. The Survey. English. Public. Colorado, Moffat County, and Routt County.