Heydrick's map of Eastland and part of Erath, Comanche, Brown, Coleman and Callahan Counties, Texas.

Map shows oil and gas exploration activity, oil and gas wells, towns, landowners, county boundaries, railroads, and watershed in early twentieth century Eastland County, Texas. Includes legend and illustration. Scale [1:66,667].
Date: 1918
Creator: L.C. and G.T. Heydrick
System: The Portal to Texas History