1888
Northern Pacific Railroad Company
1:380k
1900
Plummer, Fred G.
1:766k
1936
Oregon Recreational Service
1857
SWAN, James Gilchrist.
1934
Leahy, J.F.
1909
Cram, George Franklin; Davis, Ellis Arthur
1:2m
1944
Rand McNally & Co.
1:895k
1909
Cram, George Franklin
1:2m
1924
Rand McNally and Company
1:950k
1876
U.S. General Land Office
1:760k