Northeast Mt.-Western N.D. (MT-ND)

Survey type M-D&Dz (magnetic; collected in digital form; digitized from contour maps)
Flown by Airmag
Date flown 09/80
Line spacing 4.83 (km)
Altitude 1219.2 (m) by barometer measurement
Total distance 11,193 (km)
References
Counties Daniels - Phillips - Richland - Roosevelt - Sheridan - Valley - Wibaux - Billings - Burke - Divide - Dunn - Golden Valley - McKenzie - Mountrail - Stark - Williams
Overlapping surveys

Data: Magnetic (M-D&Dz)