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Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 (ver. 2.0, June 2020)


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Parks, H.L., Bloss, B.R., Johnson, M.R., and Finn, C.A., 2019, Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 (ver. 2.0, June 2020): U.S. Geological Survey data release,


A helicopter-borne electromagnetic/magnetic survey was flown over the Stillwater area, southwest Montana from May 5 to May 16, 2000. The survey was conducted over the Stillwater Igneous Complex, a Precambrian layered mafic-ultramafic intrusion which is characterized by igneous layering. Electromagnetic data were acquired using DIGHEM helicopter-borne electromagnetic system. Magnetic data were collected with optically pumped Cesium Vapor Geometrics G822 magnetometer. Sensor elevation above ground was measured with Honeywell/Sperry AA220 radar. The nominal elevation of the sensor was 60 meters. Survey coverage comprises 1,914 line kilometers, including tie lines. Flight lines were flown in an azimuthal direction of 020 degrees with a [...]


Attached Files

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StillwaterMagEM_Data_Dictionary_v2.csv 2.47 KB text/csv
StillwaterMagEM_DIGHEM_contractor_report.pdf 1.03 MB application/pdf
StillwaterMagEM_v2.csv 144.96 MB text/csv 1.17 MB application/zip 12.3 KB application/zip


The purpose of the survey was to map geophysical characteristics to provide information that could be used to map the geology and structure in the Stillwater Complex area, Montana.


Spatial Services

ScienceBase WMS


  • USGS Data Release Products
  • USGS Geology, Geophysics, and Geochemistry Science Center

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Revision 2.0 by Heather Parks on June 5, 2020. To review the changes that were made, see “Version History.txt” in the attached files section.

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DOI doi:10.5066/P92R4OL2

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