Styx River Geophysical Survey

The digital data below was produced from airborne geophysical surveys conducted in 2007 and 2008 for the Styx River Survey area, southcentral Alaska. Aeromagnetic and electromagnetic data were acquired for about 715 sq miles. Data provided in GPR 2008-3 include (1) raw and processed linedata in Geosoft ASCII XYZ files, (2) gridded files of magnetic data, a calculated vertical magnetic gradient (first vertical derivative), apparent resistivity data, and a digital elevation model, (3) flight lines in vector format, and maps of the data in PDF format. A future publication will include the technical project report, interpretation map, and EM anomalies, as well as other files.

Available Data Metadata Overview
File Name Data File Format Download File Size
GPR2008-3_vectors Vector data Download 83.7 M
GPR2008-3_maps-HPGL2 Plot files Download 83.0 M
GPR2008-3_linedata-XYZ Line data XYZ files Download 262.6 M
GPR2008-3_grids-GRD Gridded data Geosoft format Download 56.6 M
GPR2008-3_grids-ERS Gridded data ER Mapper Download 56.7 M
GPR2008-3_maps-PDF Adobe PDF files Download 94.6 M


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  • GPR 2008-3. Line, grid, and vector data, and plot files for the airborne geophysical survey of the Styx River Survey, southcentral Alaska. Supersedes GPR 2008-2.
  • GPR 2008-2. Preliminary final version of part of the airborne geophysical data from the Styx River Survey, southcentral Alaska: parts of Lime Hills and Tyonek quadrangles. Superseded by GPR 2008-3