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The National Geologic Map Database (NGMDB) is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. The Geologic Mapping Act of 1992 and its...
Search relevance: 1.00 | Views last month: 38 | Catalog Last Checked: September 10, 2026 at 10:24 PM -
This data release provides digital flight line data for a high-resolution airborne magnetic survey over the western Spirit Lake tectonic zone region, covering parts of northwestern Iowa,...
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This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 07:46 PM -
This data release contains digital radiometric flight line data for a high-resolution airborne magnetic and radiometric survey over southeastern Illinois, western Kentucky, and southern Indiana,...
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This publication provides digital flight line data for a high-resolution magnetic survey over an area of northwest Arkansas. The airborne geophysical survey was jointly funded by the USGS National...
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This data release provides digital flight line data for a high-resolution airborne radiometric survey over the western Spirit Lake tectonic zone region, covering parts of northwestern Iowa,...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:12 PM -
This data release child item contains digital flight line data for a high-resolution radiometric survey over an area of northwest Arkansas. The airborne geophysical survey was jointly funded by...
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This data release provides digital flight line data for a high-resolution airborne radiometric survey over the Adirondack Lowlands in Northwest New York. The airborne survey was funded by the...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:42 PM -
This data release provides digital flight line data for a high-resolution airborne magnetic survey over the Adirondack Lowlands in Northwest New York. The airborne survey was funded by the Earth...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:33 PM -
This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:55 PM -
Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P13UEX5C This publication provides digital flight line data for a high-resolution magnetic and...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:26 PM -
This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the western Spirit Lake tectonic zone region, covering parts of northwestern...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:29 PM -
Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P14PJFWS. This publication provides digital flight line data for a high-resolution magnetic and...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:42 PM -
This data release contains digital radiometric flight line data for a high-resolution airborne magnetic and radiometric survey over an area of northwest Arkansas (version 2.0, May 2026). Data and...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:37 PM -
This publication provides digital flight line data for a high resolution magnetic and radiometric survey over an area of central Idaho, USA. The survey includes airborne geophysical data collected...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:22 PM -
This publication provides digital flight line data for a high resolution magnetic and radiometric survey over an area of central Idaho, USA. The survey includes airborne geophysical data collected...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:44 PM -
This publication provides digital flight line data for a high resolution magnetic and radiometric survey over an area of central Idaho, USA. The survey includes airborne geophysical data collected...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:34 PM -
This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over much of the Upper Peninsula of Michigan and nearby parts of northern...
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This data release provides digital flight line data for a high-resolution radiometric survey over much of the Upper Peninsula of Michigan and nearby parts of northern Wisconsin. The airborne...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: September 27, 2026 at 01:25 AM -
This data release provides digital flight line data for a high-resolution airborne magnetic survey over much of the Upper Peninsula of Michigan and nearby parts of northern Wisconsin. The airborne...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: September 27, 2026 at 12:20 AM
