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Koyukuk Geophysical Survey

The Koyukuk geophysical survey is located in interior Alaska in the Koyukuk mining district, about 300 kilometers north of Fairbanks, Alaska. Frequency domain electromagnetic and magnetic data were collected with the SIGHEM-5 system from August to October 1997. A total of 4223.4 line kilometers were collected covering 533 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ("bird") on a 30-m-long line.

Available Data Metadata Overview
File Name Data File Format File Size Info
Download koyukuk_1997_vector_data Vector data 136.2 M Read me
Download koyukuk_1997_databases_geosoft Linedata Geosoft format database 179.1 M Read me
Download koyukuk_1997_images_registered Image files 34.1 M Read me
Download koyukuk_1997_grids_geosoft Gridded data Geosoft format 49.2 M Read me
Download koyukuk_1997_grids_ermapper Gridded data ER Mapper 190.1 M Read me
Download koyukuk_1997_kmz Google Earth files 49.1 M Read me
Download koyukuk_1997_documents Adobe PDF files 6.2 M Read me
Download koyukuk_1997_maps_pdf_format Adobe PDF files 2.1 G Read me
Download koyukuk_1997_ascii_data ASCII tabular files 421.1 M Read me

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