Publisher: U.S. Geological Survey ; For sale by Map Distribution / Spatial Coverage: Middle West - Yale University Library GeoBlacklight Search Results

Start Over Publisher U.S. Geological Survey ; For sale by Map Distribution Spatial Coverage Middle West

1. Maps showing areal extent of selected Paleozoic shales in the northern midcontinent, U.S.A.

1992. 2002-06-01T04:00:00Z. 2016-05-17T16:22:16Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. cartographic image. Public. Middle West and Middle West. Paleozoic and From 230 to 570 million years ago.

2. Precambrian basement map of the northern midcontinent, U.S.A.

1990. 2002-06-01T04:00:00Z. 2020-10-16T18:55:23Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. Public. Middle West. Precambrian.

3. Quaternary geologic map of the Des Moines 4⁰ x 6⁰ quadrangle, United States

1991. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. Public. Iowa and Middle West. Quaternary.