Airborne magnetic survey, Boulder Batholith region, Montana, 2022

This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter 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. Data were collected by Sander Geophysics Limited (SGL), and Dewberry Engineers, Inc. under contract with the USGS using a helicopter with a magnetometer mounted in a stinger. The survey operated out of the Butte, Montana, airport from June of 2022 to August of 2022. Files that are available in this child item include flight line data for the magnetic survey, grids, and a geotiff of the gridded total-field anomalies.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-65ccd303d34ef4b119cb3b55
metadata_type geospatial
modified 2024-04-22T00:00:00Z
old-spatial -112.565921, 45.419325, -111.568601, 46.568983
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 3e84429219a975bee119fbfcfab4b0e18b8e49e107b1a331f2b4469d2159c5e8
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-112.565921, 45.419325], [-112.565921, 46.568983], [ -111.568601, 46.568983], [ -111.568601, 45.419325], [-112.565921, 45.419325]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aasg
  • aeromagnetic-survey
  • airborne-geophysical-survey
  • association-of-state-geologists
  • biota
  • boulder-mountains
  • boulder-river
  • broadwater-county
  • butte
  • crow-creek
  • deerlodge-national-forest
  • earth-mapping-resources-initiative
  • earthmri
  • economic-geology
  • elkhorn-mountains
  • geology-geophysics-and-geochemistry-science-center
  • geophysics
  • geospatial-datasets
  • gggsc
  • helena
  • helena-national-forest
  • jefferson-county
  • lewis-and-clark-county
  • little-blackfoot-river
  • magnetic-field-earth
  • mineral-resources
  • mineral-resources-program
  • montana
  • mrp
  • national-cooperative-geologic-mapping-program
  • powell-county
  • prickly-pear-creek
  • sedimentology
  • structural-geology
  • twin-bridges
  • u-s-geological-survey
  • united-states
  • united-states-of-america
  • usa
  • usgs
  • usgs-65ccd303d34ef4b119cb3b55
  • whitetail-valley
isopen False
license_id notspecified
license_title License not specified
maintainer Benjamin J. Drenth
maintainer_email bdrenth@usgs.gov
metadata_created 2025-09-23T23:18:40.281553
metadata_modified 2025-09-23T23:18:40.281560
notes This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was jointly funded by the Earth Mapping Resources Initiative and Kennecott Exploration Company. The survey was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 34,041 line km of magnetic and radiometric data were acquired over an irregular-shaped area of 6178 km2. Data were collected from a helicopter 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. Data were collected by Sander Geophysics Limited (SGL), and Dewberry Engineers, Inc. under contract with the USGS using a helicopter with a magnetometer mounted in a stinger. The survey operated out of the Butte, Montana, airport from June of 2022 to August of 2022. Files that are available in this child item include flight line data for the magnetic survey, grids, and a geotiff of the gridded total-field anomalies.
num_resources 2
num_tags 50
title Airborne magnetic survey, Boulder Batholith region, Montana, 2022