Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods 1947-1948."; (W 88⁰30ʹ00ʺ--W 88⁰15ʹ00ʺ/N 38⁰45ʹ00ʺ--N 38⁰30ʹ00ʺ);Relief shown by contours and spot heights.;1 map, colored;45 x 35 cm.;1:62,500