|A preliminary data grid and maps are presented for an aeromagnetic survey
of the Taylor Mountains and a portion of the Bethel quadrangles, Alaska.
The aeromagnetic survey was flown by McPhar Geosurveys Ltd. for the U.S.
Geological Survey (USGS). A flight-line spacing of 1,600 meters (1 mile)
and nominal flight height of 305 meters (1,000 feet) above topography (draped)
was used for the survey. The preliminary data grid has a grid cell size
of 350 meters (1150 feet). Final data processing and quality control have
not been applied to these data. The purpose of this preliminary data release
is to allow prompt public access to these data, which are of interest for
active mineral exploration in the region. A more complete data release
and description will be published later once the final data processing