Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
BillingsM/R-D121.9 m 4.80 km4,581 km
CodyM/R-D121.9 m 4.80 km4,646 km
BeartoothM-Dz4115 m (barometer)1.60 km1,749 km
South-central MontanaM-Dz3658 m (barometer)3.20 km1,834 km
Northern Yellowstone '67M-Dz3658 m (barometer)1.60 km3,234 km
Yellowstone RegionalM-Dz4115 m (barometer)1.60 km9,213 km