This map shows the elevation of the bedrock surface in the southwestern portion of the Wabash 30 x 60 minute quadrangle at a scale of 1:100,000. The map was created by using computer gridding and contouring software and available bedrock-surface data to model paleovalleys and other bedrock-surface features.
Hasenmueller, W. A., James, C. L. 2004, Map showing elevation of the bedrock surface in southwestern portion of the Wabash 30 x 60 minute quadrangle, Indiana: Indiana Geological Survey Open-File Study 04-09
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