1882
Hopkins, G.M.
1:7k
1882
Hopkins, G.M.
1:5k
1882
Hopkins, G.M.
1:7k
1882
Hopkins, G.M.
1:5k
1882
Hopkins, G.M.
1:5k
1882
Hopkins, G.M.
1:4k
1882
Hopkins, G.M.
1:53k
1882
Hopkins, G.M.
1:4k
1875
Hopkins, Griffith Morgan
1:17k
1891
Geological Survey (U.S.)
1:63k