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You searched for: geology Remove constraint geology Creator C. Avery Remove constraint Creator: C. Avery Place Illinois Remove constraint Place: Illinois

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1. Buried Bedrock Surface [Illinois]

Datasets datasets University Of Illinois Urbana Champaign university-of-illinois-urbana-champaign
1994. Herzog, B.L., B.J. Stiff, C.A. Chenoweth, K.L. Warner, J.B. Sievering, and C. Avery. Topography of the bedrock surface in Illinois. Bedrock topography is shown as 50-foot (15-meter) contours of bedrock elevation above mean sea level... Illinois State Geological Survey.