Webb Air Force Base : Big Spring Texas : Preliminary master plan

1951

United States. Air Force

1:12k

Big Spring South (Howard County)

1971

1:24k

Big Spring South

1939

1:63k

Boggy Lake (Tyler County)

1984

1:24k

Dallas

1932

C&GS

1:621k

Dallas (Q-5)

1944

United States. Department of Commerce

1:500k

Map Number 2 Rio Bravo Del Norte Section of Boundary Between the United States and Mexico

1853

Corps of Topographical Engineers

1:600k

Texas, Western Portion.

1875

Asher & Adams

1:1m

Texas W portion.

1874

Asher & Adams

1:1m

Karte der Quellgebiete der Flüsse Wichita, Brazos, Colorado &c im innern von Nord-Amerika

1859

Petermann, August