1955
Army Map Service (AMLD), Corps of Engineers, U.S. Army
1901
International Boundary Commission
1:60k
1950
Daughters of the Nile, Rosetta Temple No. 61
1:24k
1855
Department of the Interior
1:60k
1906
E.C Baer
1954
1:250k
1951
United States. Air Force
1:500k
1883
(U.S. War Department) Office of the Chief of Engineers, U.S.A.
1:475k
1853
1858
Campbell, Albert
1:602k