Survey number: AK23 (Pat Hill number) 
Name: Eastern Copper River
Date flown: June 1982
Company: Ertec
Flight specs: 0.5 mile, N-S, 500 ft above ground.
Instrument: ?

Digitized by: Esther Castellanos, September, 1993
Map scale: 1:63,360 

Datum: IGRF75 

Publication: University of Alaska Geothermal Report R-302

Data format: Ascii format, XYZ records 
             Longitude (degrees), Latitude (degrees), Total Field (nT)
             written with FORTRAN format: (f10.5,x,f10.5,x,f8.1)

Background: These data digitized under supervision of Rick Saltus, USGS,
            for inclusion in grid compilation for Interior Alaska
            (for published USGS Map GP-1014).  Work done in cooperation
            with John Meyer, State of Alaska, Division of Oil and Gas.