Grand Forks (ND-MN)

Survey type M/R-D (magnetic; radiometric; collected in digital form)
Flown by EG&G
Line spacing 9.66 (km)
Altitude 121.92 (m)
Total distance 2,301 (km)
Counties Becker - Clay - Mahnomen - Norman - Pennington - Polk - Red Lake - Barnes - Cass - Grand Forks - Griggs - Nelson - Steele - Traill
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)