A detailed aeromagnetic survey of the Republic and Toroda Creek grabens was flown by Hunting Geophysical Services, Inc. in 1959. Five 15-minute quadrangles were surveyed. (See location map overleaf.) The data were published by the Washington Division of Mines and Geology in 1960. The publication is now out of print. EDCON-PRJ has digitized the maps and merged the data into a single grid.
Survey Size:
3,945 line miles
Flight Lines:
East-West, 0.25 miles
Elevation:
500 feet above terrain
Date Flown:
1959
Data Provided:
- Total Magnetic Intensity (IRGF removed) contour map
- Flight Path Map
- Reduced-To-Pole of TMI map
- Vertical Derivative map (optional)
- Horizontal Gradient (optional)
- Profiles, on paper (optional)
- CD/DVD with Flight Line data and grids
Total Cost:
$1,450
PDF spec sheet: A1038_wa_republic_graben_rev-06-08
PDF map: A1038_wa_republic_graben
KMZ : A1038_republic_and_toroda_creek_grabens
SHP download: A1038_republic_and_toroda_creek_grabens.zip