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Kasaan Geophysical Survey

The Kaasan geophysical survey is located in southeast Alaska in the Ketchikan area, about 350 kilometers south of Juneau, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in May 1992. A total of 679 line kilometers were collected covering 133.6 square kilometers. Line spacing was 200 meters (m). Data were collected approximately 30 m above the ground cover or tree canopy from a helicopter-towed sensor platform ("bird") on a 30-m-long line. The large trees and steep terrain resulted in an average ground clearance of 150 m. The Kaasan survey was flown for the American Copper & Nickel Company, Inc. and provided to DGGS by the Sealaska Corporation. The data were merged and released with the 1999 Ketchikan geophysical survey maps.

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Download gpr2020_007_kaasan_1992_vector_data Vector data 51.4 M Read me
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Download gpr2020_007_kasaan_1992_profiles_stacked Adobe PDF files 34.1 M Read me
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