1905
U. S. Geological Survey
1:63k
1922
Portland Chamber of Commerce
1900
Plummer, Fred G.
1:766k
1888
Northern Pacific Railroad Company
1:380k
1858
U.S. General Land Office
1:1m
1855
U.S. General Land Office
1:1m
1936
Oregon Recreational Service
1852
U.S. General Land Office
1:634k
1857
SWAN, James Gilchrist.
1934
Leahy, J.F.