1931
1:125k
1881
Hayden, F.V.
1:253k
1960
Bloodgood, Don
1968
1882
Wheeler, G.M.
1:507k
1849
Whiting, W.H.C.
1:634k
1946
Schmidt, Ray
1:1m
1861
Gunnison, J.W.
1:760k
Thayer, H.L.
1941