1944
USGS (U.S. Geological Survey)
1:125k
1871
Wheeler, G.M.
1:507k
1873
Whitney, J.D.
1:380k
1931
Cormack, Robert
1931
Cormack, Robert
1885
Russell, Israel C. (Israel Cook), 1852-1906.
1:2m
1857
Campbell, Albert
1:760k
1873
United States. Congress
1:760k
1939
Rand McNally and Company
1:729k
1866
Holdredge, Sterling M.
1:2m