• Creator
  • Geological Survey (U.S.)
  • Created Date
  • 1949-1949
  • Description
  • Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods, 1946-1947"; "Contour interval 20 feet. 45 x 35 cm.; 1 map, colored. 1:62,500. Geological Survey (U.S.); Geological Survey Division (Urbana, Ill.).