1841
US Ex. Ex.
1:142k
1934
Mora, Jo (1876-1947)
1881
1:200k
1882
Bancroft, Hubert Howe.
1854
U.S. Lake Survey
1866
Unknown
1853
Bache, A. D.
1:80k
1900
U.S. Coast Survey
1973
Alpha, Tau Rho