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Start Over You searched for: Subject Geology, Structural Remove constraint Subject: Geology, Structural Year 1986 Remove constraint Year: 1986

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3. Bedrock topography of northwest Iowa

Yale Public content
1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Iowa.

4. Depth to bedrock in North Dakota

Yale Public content
1986. 2008-09-04T13:13:08Z. 2011-03-25T21:38:24Z. Bluemle, John P. North Dakota Geological Survey. English. Public. North Dakota.