1901
U. S. Geological Survey
1:125k
1900
Gannett, Henry
1899
1:80k
1934
Mora, Jo (1876-1947)
1853
Bache, A. D.
1910
Clason
1876
1:634k
1841
US Ex. Ex.
1:142k
1858
U.S. General Land Office
1:1m
1877
Hanson, John
1:380k