Iraan

1967

1:24k

Sheffield

1929

1:125k

Ozona

1985

1:100k

Ozona

1985

1:100k

Sonora

1958

1:250k

Sonora

1954

1:250k

Sonora

1954

1:250k

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

1853

Corps of Topographical Engineers

1:600k

Survey of the Mississippi River

1880

Mississippi River Commission

1:20k

(Texas) Railroad Map of the United States.

1891

Rand McNally and Company

1:507k