1879
EMERSON, William Andrew.
1893
Geological Survey (U.S.)
1:63k
1878
BENEDICT, William Addison.
1891
Geological Survey (U.S.)
1:63k
1822
Lea, I.
1:380k
1826
Hassel, Georg, 1770-1829
1:390k
1814
Carey, Mathew
1:285k
1814
1831
Finley, Anthony
1:360k
1796
Sotzmann, Daniel Friedrich
1:380k