No. 6A: Relief map of Chihuahua

1922

Mexico. Direccion de Estudios Geográficos y Climatologicos

Texas (western portion).

1889

Cram, George

1:2m

Western Half of Texas.

1901

Cram, George

1:2m

(Map 9 - Texas).

1878

U.S. General Land Office

1:1m

Texas, Part of New Mexico.

1856

Black, Adam & Charles

1:4m

Texas

1855

Colton, J.H.

1:4m

Composite: Texas.

1901

Cram, George

1:2m

Texas.

1856

Colton, G.W.

1:4m

Map of Texas and part of New Mexico.

1857

U.S. War Department, Topographical Engineers

1:2m

Texas

1927

National Map Company

1:3m