"Base compiled from U.S.G.S. quadrangle sheets and county highway map, polyconic projection."; "50,000 foot grid ticks based on the Texas state plane coordinate system, north central zone. 10,000 meter Universal Transverse Mercator grid, zones 13 and 14."; "November 1979. Base 4-R-37159."; Includes vicinity map.
58 x 73 centimeters
Scale approximately 1:100,000