Name: Footprint_AirborneMagneticAndRadiometricSurveyHartvilleUpliftAndShirleyMountainsRegionsWY2025

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Description: This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the Hartville Uplift and Shirley Mountains regions of Wyoming. The survey is split into two blocks, one covering the Hartville Uplift region (Block A), and the other covering the Shirley Mountains region (Block B). The airborne survey was mainly funded by the State of Wyoming, with a smaller contribution from the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the Wyoming State Geological Survey (WSGS) and contracted by the USGS. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of ca. 83,000 line km of magnetic and radiometric data were acquired over areas totaling ca. 15,000 km2. In the Hartville Uplift region (Block A), data were collected from a fixed-wing aircraft flown at a nominal terrain clearance of 100 meters (m) above topography along E-W flight lines spaced at 200 m intervals. Tie lines were flown in an N-S direction every 2000 m. In the Shirley Mountains region (Block B), data were collected from a helicopter flown at a nominal terrain clearance of 100 meters (m) above topography along N-S flight lines spaced at 200 m intervals. Tie lines were flown in an E-W direction every 2000 m. Data were collected by NV5 Geospatial, Precision GeoSurveys, and EDCON-PRJ under contract to the USGS using aircraft with magnetometers mounted in stingers and fully calibrated gamma-ray spectrometers. The survey operated out of airports in Casper, Lusk, and Torrington, Wyoming, from May to July of 2025. Files that are available in this publication include flight line data for the magnetic and radiometric survey, and a report describing the survey parameters, field operations, quality control and data reduction procedures. A zip file is provided that contains the contractor's deliverable products that includes Geosoft databases and grids for the magnetic and radiometric survey and the report describing the survey and data reduction.

Service Item Id: 30614f214df64311b2bc44bc09f2c06b

Copyright Text: U.S. Geological Survey roles and contributions: Scientist-In-Charge: Benjamin J. Drenth Contract technical liaison: Dylan M. Connell Survey design and coordination: Benjamin J. Drenth Preliminary data quality assurance: Benjamin J. Drenth, Dylan M. Connell Final data quality assurance: Philip J. Brown Data preparation for release: Benjamin J. Drenth, Philip J. Brown Metadata preparation for release: Philip J. Brown, Benjamin J. Drenth Data and metadata review: Patricia G. MacQueen Section 508 review: Maria R. Montour Project Manager: Brent D. Marz Funding: State of Wyoming and Earth Mapping Resources Initiative Wyoming State Geological Survey roles and contributions Survey design and coordination: Ranie M. Lynds, Patricia M. Webber Contractor roles and contributions: Contractors: NV5 Geospatial, Inc.; Precision GeoSurveys, Inc.; and EDCON-PRJ, Inc. Please note that the contractors made no mention of specific project personnel and their roles in the report.

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