1807
Humboldt, Alexander von, 1769-1859
1:2m
1891
1:125k
1916
1:125k
1891
1:125k
1922
Mexico. Direccion de Estudios Geográficos y Climatologicos
1922
Mexico. Direccion de Estudios Geográficos y Climatologicos
1:1m
1951
United States. Air Force
1:500k
1866
Holdredge, Sterling M.
1:3m
1827
Vandermaelen, Philippe, 1795-1869
1:2m
1883
(U.S. War Department) Office of the Chief of Engineers, U.S.A.
1:475k