Illinois, Okawville quadrangle : topography.

Description:

Contour interval 20 feet.;"Surveyed in 1908.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500

Creator:

Geological Survey (U.S.)

Publisher:

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

Provider:

University of Illinois Urbana-Champaign

Temporal Coverage:

1910

Spatial Coverage:

Illinois

Access Rights:

Public

Format:

JPEG2000