Olney quadrangle, Illinois : 15 minute series (topographic).

Description:

Contour interval 10 feet;"Culture and drainage in part compiled from aerial photographs taken 1938-1941. Topography by plane-table methods, 1947.";Relief shown by contours and spot heights.;1 map, colored;45 x 35 cm.;1:62,500

Creator:

Geological Survey (U.S.)

Publisher:

Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.)

Provider:

University of Illinois Urbana-Champaign

Temporal Coverage:

1949

Spatial Coverage:

Illinois

Access Rights:

Public

Format:

JPEG2000