Illinois, Indiana, and Ohio Magnetic Data Index Map

The Illinois, Indiana, and Ohio magnetic compilation contains data from 18 separate digital magnetic surveys and digitized maps and grids. The index map shows the location and flight-line spacing of the original surveys. A tabular data table provides a summary of the sources. See section Illinois, Indiana, and Ohio Magnetic Compilation for a description of digital and digitized data.

Version 1.0

Posted March 2008

• Magnetic Anomaly Map

• Map Description

• Processing Details

• Survey Info

• Detailed Aeromag Maps

• Bouguer Gravity Map

• Isostatic Gravity Map

• Data Directory

• References