Portland (ME-NH)

Survey type M/R-D (magnetic; radiometric; collected in digital form)
Flown by T.I.
Line spacing 8.05 (km)
Altitude 121.92 (m)
Total distance 990 (km)
Counties Androscoggin - Cumberland - Oxford - Sagadahoc - York - Belknap - Carroll - Grafton - Hillsborough - Merrimack - Rockingham - Strafford - Sullivan
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)