1900
Hyde & Company
1:18k
1867
Beers, Frederick W.
1:38k
1948
Selchow, Roger H.
1849
Hassler, F. R.
1:20k
1872
Beers, J.B.
1:24k
1882
C&GS
1:20k
1893
Geological Survey (U.S.)
1:63k
1893
D.H. Hurd & Co.
1:11k
1895
Servoss, R. D.
1:80k
1908
Hyde, E. Belcher
1:13k