1925
Great Northern Railway
1914
Washington : U.S.Geological Survey
1914
Marshall, R. B.; Tatum, Sledge; Baldwin, H. L. (jr.); United States Geological Survey
1:125k
1938
Lindgren, Jolly
1952
Wessel
1:225k
1878
Twining, W.J.
1:507k
1935
C&GS
1:500k
1900
Ayers, H.B.
1:911k
1878
Campbell, A.
1:127k
1938
Thomas Brothers
1:2m