Marion (OH)

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 2,697 (km)
Counties Allen - Ashland - Auglaize - Champaign - Clark - Coshocton - Crawford - Delaware - Franklin - Hancock - Hardin - Holmes - Huron - Knox - Licking - Logan - Madison - Marion - Medina - Morrow - Muskingum - Putnam - Richland - Seneca - Union - Wayne - Wyandot
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)