1951
United States. Air Force
1:500k
1855
Department of the Interior
1:60k
1901
International Boundary Commission
1:60k
1883
(U.S. War Department) Office of the Chief of Engineers, U.S.A.
1:475k
1901
International Boundary Commission
1:60k
1853
1858
Campbell, Albert
1:602k
1861
Parke, John G.
1:760k
1922
Mexico. Direccion de Estudios Geográficos y Climatologicos
1858
Garcia Cubas, Antonio, 1832-1912
1:2m