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Open-File Report 99–0557
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Digitized Aeromagnetic Datasets for the Conterminous United States, Hawaii, and Puerto Rico

By U.S. Geological Survey

thumbnail image of magnetic map

From 1976 through 1999 (and on a continuing basis), the U.S. Geological Survey digitized analog magnetic maps for various regions of the United States. The purpose of this program is to fill in gaps that are not covered by modern digital aeromagnetic surveys.

This report contains all available digitized magnetic files that are currently on record at the U.S. Geological Survey for the continental U.S., Hawaii, and Puerto Rico. Updates will be made available to the public as they are released on our FTP sites.

The data available here are a compilation of digitally converted analog magnetic field intensity maps.  These maps are either USGS or publicly accessible publications.  They were generated as needed to fulfill USGS project requirements.

Version 1.0

Posted 2000

For an explanation of the files and format types:
README file (HTML) (4 KB)
README file (TEXT) (3 KB)
README file (Microsoft Word) (31 KB)

To view through the contents of the report on-line.
(This HTML version of the report is accessible as defined in Section 508 of the Rehabilitation Act of 1973, Amendments of 1998.) logo  Take Pride in America button