Washington, D.C. : Dept. of the Interior, U.S. Geological Survey, 1930
Physical Details
1 map : color ; 45 x 33 cm on sheet 51 x 42 cm
OCLC
ocm61433870
Cartographic Data
Scale 1:62,500, Polyconic proj
(W 91⁰15'-W 91⁰/N 44⁰-N 43⁰45').
Relief shown by contours, isolines and spot heights.
Contour interval 20 feet.
Surveyed in 1921-1927.
Text and ill. on verso.
Shows major roads, streams, lakes and towns as well as listing coulees, schools, valleys, County Asylum, cemeteries, railroads, Camel Hump, bluffs, ridges, Poor Farm, Calvert.