Chenoweth, Cheri, Herzog, B. L. (Beverly L.), J.B. Sievering, K.L. Warner, Stiff, Barbara J.
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1994
Full Details
Full Details
Title
Buried Bedrock Surface [Illinois]
Description
Topography of the bedrock surface in Illinois. Bedrock topography is shown as 50-foot (15-meter) contours of bedrock elevation above mean sea level (msl). Several major bedrock valleys are found across the state. Attributes include contour values. ISGS, 1994.
Creator
Chenoweth, Cheri, Herzog, B. L. (Beverly L.), J.B. Sievering, K.L. Warner, Stiff, Barbara J.