1814
Lewis, Meriwether
1855
U.S. General Land Office
1:1m
1888
Northern Pacific Railroad Company
1:380k
1936
Oregon Recreational Service
1858
U.S. General Land Office
1:1m
1909
Cram, George Franklin; Davis, Ellis Arthur
1:2m
1909
Cram, George Franklin
1:2m
1852
U.S. General Land Office
1:634k
1924
Rand McNally and Company
1:950k
1876
U.S. General Land Office
1:760k