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High-Resolution Aeromagnetic Survey of the Greater Spokane Area, Washington and Idaho

Metadata Updated: November 26, 2025

This data release provides access to a low-altitude, aeromagnetic survey of a part of eastern Washington and northwestern Idaho centered approximately at Spokane, Washington, and referred to as the Spokane aeromagnetic survey. The survey includes the cities of Spokane and Cheney, numerous smaller communities, and Fairchild Air Force Base. Magnetic anomalies reflect Miocene rocks of the Columbia River Basalt Group overlying Precambrian through Mesozoic basement rocks, including the Priest River metamorphic core complex. These data were acquired between May 17 and June 12, 2013, by EDCON-PRJ, Inc., working under contract to the U.S. Geological Survey. Total magnetic field values were acquired using a fixed-wing aircraft flown at a target elevation 200 m above terrain (300 m over Spokane) and along flight lines and tie lines spaced 400 m and 4000 m apart, respectively. Flight lines were directed with a heading of 70 degrees east of north; tie lines were directed 160 degrees east of north. A total of 12,105 line-kilometers were acquired over an area of 4,330 square km. The details of the Spokane aeromagnetic survey are described in the document Spokane_Contract_Report.pdf available for download in this data release.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date September 12, 2025
Metadata Updated Date November 26, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 12, 2025
Metadata Updated Date November 26, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-5e88cffa82cee42d134428dc
Data Last Modified 2020-08-20T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 6dd3022a-c6b2-445e-9347-ad5eade90629
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Source Datajson Identifier True
Source Hash 9b13b44453845efe847c84b4497251bca766ce6aef11a77216eb66524624b148
Source Schema Version 1.1

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