St Louis (MO-IL)

Survey type M/R-D (magnetic; radiometric; collected in digital form)
Flown by Geodata International, Inc.
Date flown 09/80-10/80
Line spacing 9.6 (km)
Altitude 121.9 (m)
Total distance 2,806 (km)
References
Counties Calhoun - Jersey - Macoupin - Madison - Monroe - Randolph - Saint Clair - Callaway - Crawford - Franklin - Gasconade - Jefferson - Lincoln - Maries - Montgomery - Osage - Phelps - Saint Charles - Sainte Genevieve - Saint Francois - Saint Louis - Warren - Washington - Saint Louis
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)