1902
U. S. Geological Survey
1:63k
1885
George N. Colby & Co.
1:8k
1892
D.H. Hurd & Co.
1:24k
1878
New Hampshire. Geological Survey
1:155k
1913
C&GS
1:80k
1878
New Hampshire. Geological Survey
1:155k
1892
D.H. Hurd & Co.
1:158k
1894
J.H. Stuart & Co.
1:20k
1877
Hitchcock, C.H.
1892
D.H. Hurd & Co.
1:24k