Helena (AR-MS-TN)

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 2,979 (km)
Counties Arkansas - Cleveland - Crittenden - Desha - Jefferson - Lee - Lincoln - Lonoke - Monroe - Phillips - Prairie - Saint Francis - Woodruff - Bolivar - Coahoma - DeSoto - Panola - Quitman - Tallahatchie - Tate - Tunica - Shelby
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)