The Aniak and Little Taylor Mountains segments of the Kuskokwim airborne magnetic and radiometric geophysical survey cover parts of the Russian Mission, Sleetmute, Bethel and Taylor Mountains quadrangles of southwestern Alaska (fig. 1). 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.
| File Name | Data File Format | File Size | Info |
|---|---|---|---|
| Download gpr2026_005-aniak-ltl-taylor-vector_data | Vector data | 1022.6 K | Read me |
| Download gpr2026_005-aniak-ltl-taylor-gdb_geosoft | Gridded data Geosoft format | 2.2 G | Read me |
| Download gpr2026_005-aniak-ltl-taylor-grids_geosoft | Gridded data Geosoft format | 127.2 M | Read me |
| Download gpr2026_005-aniak-ltl-taylor-kmz | Google Earth files | 125.9 M | Read me |
| Download gpr2026_005-aniak-ltl-taylor-grids_tif | Georeferenced raster files | 71.3 M | Read me |
| Download gpr2026_005-aniak-ltl-taylor-ascii_data | ASCII tabular files | 1.6 G | Read me |
| Download gpr2026_005-aniak-ltl-taylor-documents | Adobe PDF files | 11.4 M | Read me |
| Download gpr2026_005-aniak-ltl-taylor-maps_pdf | Adobe PDF files | 112.8 M | Read me |
