1901
International Boundary Commission
1:60k
1901
International Boundary Commission
1:60k
1944
United States. Department of Commerce
1:500k
1893
Wood Brothers
1:3m
1924
[Tucson] : Arizona Bureau of mines
1934
Leahy, J.F.
1950
Bloodgood, Don
1883
Cram, George Franklin
1:2m
1876
Ward, J.W.
1:665k
1938
Thomas Brothers
1:2m