Publisher: Dept. of Energy and Natural Resources, Illinois State Geological Survey / Spatial Coverage: Illinois - Yale University Library GeoBlacklight Search Results

Start Over Publisher Dept. of Energy and Natural Resources, Illinois State Geological Survey Spatial Coverage Illinois

1. Simple bouguer gravity anomaly map of Illinois

1993. 2007-05-01T15:18:02Z. 2011-06-03T19:43:01Z. Heigold, Paul C. Dept. of Energy and Natural Resources, Illinois State Geological Survey. English. Public. Illinois.

2. Total intensity magnetic anomaly map of Illinois

1993. 2007-04-18T14:25:50Z. 2011-06-03T19:38:14Z. Hildenbrand, T. G. Dept. of Energy and Natural Resources, Illinois State Geological Survey. English. Public. Illinois.

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