1901
U. S. Geological Survey
1:63k
1898
Spurr, Josiah Edward
1:63k
1898
Spurr, Josiah Edward
1:31k
1898
Spurr, Josiah Edward
1:31k
1898
Spurr, Josiah Edward
1:10k
1898
Spurr, Josiah Edward
1:10k
1898
Spurr, Josiah Edward
1:10k
1898
Spurr, Josiah Edward
1:10k
1966
O'Brien, Emmett J
1:63k
1881
Hayden, F.V.
1:253k