1903
U. S. Geological Survey
1:125k
1900
Walcott, Charles D.
1:125k
1968
Alpha, Tau Rho
1946
Bascom
1946
Bascom
1963
California Division of Mines and Geology
1855
U.S. General Land Office
1:1m
1851
U.S. General Land Office
1946
Bascom
1936
Oregon Recreational Service