1899
1:80k
1841
US Ex. Ex.
1:142k
1934
Mora, Jo (1876-1947)
1854
U.S. Lake Survey
1:200k
1881
1866
Unknown
1853
Bache, A. D.
1877
Hanson, John
1:380k
1910
Clason
1858
U.S. General Land Office
1:1m