Illinois-Iowa, Milan quadrangle : topography.

Description:

Contour interval 20 feet.;"Surveyed in 1910.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours and spot heights.;1 map, colored;50 x 30 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:

1912

Spatial Coverage:

Illinois and Iowa

Access Rights:

Public

Format:

JPEG2000