1. Texas Stephenville sheet Yale Public content 1890. 2011-05-27T13:17:53Z. 2015-10-21T15:00:03Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Comanche County (Tex.), Eastland County (Tex.), Erath County (Tex.), Stephenville (Tex.), and Texas.