• Creator
  • Geological Survey (U.S.)
  • Created Date
  • 1913-1913
  • Description
  • Relief shown by contours.; "Contour interval 20 feet."; "Surveyed in 1911."; Coordinates: (W 91⁰00ʹ00ʺ--W 90⁰45ʹ00ʺ/N 40⁰30ʹ00ʺ--N 40⁰15ʹ00ʺ). 45 x 35 cm.; 1 map, colored. 1:62,500. Geological Survey (U.S.); Geological Survey Division (Urbana, Ill.).