Ketchikan (AK)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by LKB
Date flown 05/76-07/76
Line spacing 1.61 (km)
Altitude 1828.8 (m) by barometer measurement
Total distance 8,530 (km)
References
Counties Ketchikan Gateway - -
Overlapping surveys

Data: Magnetic (M-Dz)