Kuskokwim Aniak and the Little Taylor Mountains magnetic and radiometric geophysics

Project Details

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• Project ID:

  1743

• Nickname/Abbreviation:

  Aniak Ltl Taylor Mts GP

• Parent Project:

  Geophysics Program

• Status:

  Complete

• Description:

  Aniak and the Little Taylor Mountains airborne magnetic and radiometric geophysics covers parts of the Russian Mission, Sleetmute, Bethel and Taylor Mountains quadrangles of southwestern Alaska. Terraquest Ltd. collected magnetic and radiometric data with a King Air C-90 from June 12 to November 8, 2025; aircraft maintenance caused a pause in survey activities from June 28 through September 9, 2025. A total of 20,090.5 line kilometers were accepted by DGGS, covering 6,957 km2. Magnetic data were collected with a Geometrics Inc G-822A cesium-vapour magnetometer; radiometric data were collected with two (2) Radiation Solutions RS-500 series multi-channel gamma-ray spectrometers, model RS 500, with 512 channels, for a total crystal volume of 33.6 liters downward-looking and 8.4 upward-looking (for atmospheric radon detection). The survey was flown with a line spacing of 400 meters (m) and a nominal ground clearance of 100 m. The data from this survey will improve understanding of the geology and mineral potential and support resource exploration of the central Kuskokwim River region of Alaska.

• Project Date(s):

  2025 - 2026

• Primary Contact:

  Fusso, Logan A.

• DGGS section:

  Mineral Resources

• Project Participants:

  Logan A. Fusso, Eric I. Petersen

Publications

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GPR 2026-5

Fusso, L.A., Petersen, E.I., and Terraquest LTD., 2026, Kuskokwim airborne magnetic and radiometric survey, Aniak and the Little Taylor Mountains, Alaska: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2026-5, 17 p. https://doi.org/10.14509/32087