Data

This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the Elk Creek region of Nebraska and Kansas. The airborne survey was funded by the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the USGS in collaboration with the Nebraska Conservation and Survey Division and the Kansas Geological Survey...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over the northeastern portion of the Colorado Mineral Belt, northern Colorado. The Colorado Mineral Belt is a broad, northeast-southwest trending alignment of historic mining districts that have produced multiple types of commodities, including critical minerals...

Radiometric data were collected at the Grand Junction Regional Airport radiometric calibration facility in March 2023 and August 2024. The facility consists of five ~9 by ~12 m (30 x 40 feet) concrete pads, each 18 in thick. Each pad provides sources of radioelements that are spatially homogeneous (see Ward, 1978). Three pads are dedicated K, Th, and U pads, each of which contains high...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of eastern Idaho and western Montana. The survey was acquired as part of the UGSS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural...

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...

Rock physical property measurements were collected on outcrops to help understand the causative sources of gravity and magnetic survey anomalies in the southern Medicine Bow Mountains of Wyoming. A total of 539 magnetic susceptibility measurements and 318 density measurements have been conducted. The resulting data aid in interpretation of gravity and airborne magnetic data that are...

This U.S. Geological Survey (USGS) data release is a collaborative geospatial database compiled by the USGS and participating State geological surveys, with support from the Earth Mapping Resources Initiative (Earth MRI) program. The database represents the first phase of cataloging above-ground mine waste features —such as tailings and waste rock piles— that are remnants of historical...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over a part of west central Utah. The survey was acquired as part of the UGSS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and...

Rock physical property measurements were collected on core samples to help understand the causative sources of gravity and magnetic survey anomalies in northwestern Minnesota. A total of 410 measurements of magnetic susceptibility and density on Archean core samples from 20 boreholes have been conducted. The measurements aid in interpretation of gravity and airborne magnetic data that...

This dataset includes rock magnetic susceptibility and gamma ray spectrometry measurements from 204 outcrops in southwest Montana during 2025. The measurements were collected to understand the causative sources of airborne magnetic and radiometric survey anomalies in the Idaho-Montana porphyry belt. Sixteen magnetic susceptibility measurements were collected at each analyzed site using a...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of central and northeastern Florida and southeastern Georgia. The survey was acquired as part of the USGS Earth Mapping Resource Initiative (Earth MRI) to improve our understanding of the fundamental geologic framework of the region with applications...

This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS...