Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
AshtonM/R-D121.92 m 4.83 km3,056 km
BillingsM/R-D121.92 m 4.83 km4,582 km
BozemanM/R-D121.92 m 4.83 km4,434 km
ButteM/R-D121.92 m 4.83 km4,406 km
ChoteauM/R-D121.92 m 9.66 km2,250 km
CodyM/R-D121.92 m 4.83 km4,646 km
Cut BankM/R-D121.92 m 9.66 km2,223 km
DillonM/R-D121.92 m 4.83 km4,360 km
DuboisM/R-D121.92 m 4.83 km4,646 km
EkalakaM/R-D121.92 m 4.83 km4,691 km
Elk CityM/R-D121.92 m 4.83 km4,477 km
East Poplar oil fieldM/EM-D30 m above ground0.10 km1,333 km
Missouri BreaksM-Dz137 m above ground0.20 km km
ForsythM/R-D121.92 m 9.66 km2,504 km
GilletteM/R-D121.92 m 4.83 km4,723 km
GlasgowM/R-D121.92 m 9.66 km2,374 km
GlendiveM/R-D121.92 m 9.66 km2,470 km
Great FallsM/R-D121.92 m 4.83 km4,331 km
HamiltonM/R-D121.92 m 4.83 km3,354 km
HardinM/R-D121.92 m 9.66 km2,538 km
HavreM/R-D121.92 m 4.83 km4,295 km
Pend Orielle North-centralM-Dz1828.8 m (barometer)1.61 km193 km
Idaho Regional '69M-Dz3657.6 m (barometer)8.05 km7,773 km
Selway-BitterrootM-Dz3352.8 m (barometer)1.61 km9,197 km
Washington-Idaho-MontanaM-Dz2133.6 m (barometer)3.22 km8,441 km
Scotchman PeakM-D2133.6 m (barometer)1.61 km414 km
Blue JointM-D3352.8 m (barometer)1.21 km507 km
Italian PeakM-D304.8 m above ground0.80 km1,658 km
JordanM/R-D121.92 m 9.66 km2,470 km
KalispellM/R-D121.92 m 9.66 km2,324 km
LewistownM/R-D121.92 m 4.83 km3,376 km
Miles CityM/R-D121.92 m 4.83 km4,411 km
Bearpaw MountainsM-Dz304.8 m above ground0.80 km5,267 km
Boulder BatholithM-Dz3200.4 m (barometer)3.22 km4,973 km
North BearpawM-Dz152.4 m above ground0.40 km4,667 km
BozemanM-Dz152.4 m above ground0.80 km3,380 km
Townsend ValleyM-Dz152.4 m above ground0.80 km4,064 km
Northwest Montana '65M-Dz2743.2 m (barometer)3.22 km6,598 km
Northwest Montana '67M-Dz2743.2 m (barometer)3.22 km4,345 km
Mission RangeM-Dz2743.2 m (barometer)1.61 km2,655 km
Little Belt MountainsM-Dz2743.2 m (barometer)1.61 km721 km
BeartoothM-Dz4114.8 m (barometer)1.61 km1,749 km
Montana '79M-Dz2438.4 m (barometer)0.80 km1,287 km
N.E. Idaho-W. MontanaM-Dz2133.6 m (barometer)1.61 km14,484 km
MissoulaM-Dz2286 m (barometer)1.61 km6,759 km
WA-ID-MT - E. CentralM-Dz3352.8 m (barometer)3.22 km3,090 km
WA-ID-MT - EastM-Dz2133.6 m (barometer)3.22 km1,497 km
Idaho-MontanaM-Dz3657.6 m (barometer)3.22 km8,771 km
South-central MontanaM-Dz3657.6 m (barometer)3.22 km1,835 km
Rogers PassM-D2133.6 m (barometer)1.21 km1,223 km
Elkhorn MountainsM-D2743.2 m (barometer)0.80 km845 km
Wallace-FlatheadM-D304.8 m above ground1.21 km3,766 km
Dillon (Pioneer-Beaver.)M-D2743.2 m (barometer)0.80 km5,230 km
Butte South (Humbug)M-D2743.2 m (barometer)0.40 km257 km
Big Snowy MountainsM-D2743.2 m (barometer)1.61 km652 km
CentennialM-D3352.8 m (barometer)1.21 km563 km
GallatinM-D3657.6 m (barometer)1.21 km2,977 km
Middle JudithM-Dz2743.2 m (barometer)1.21 km290 km
Sapphire/Anaconda-PintlarM-D304.8 m above ground0.80 km3,613 km
Tobacco RootsM-D304.8 m above ground0.80 km805 km
Mt. HenryM-D304.8 m above ground0.80 km764 km
Madison RangeM-D3657.6 m (barometer)1.21 km951 km
Ten LakesM-D304.8 m above ground0.80 km1,341 km
ButteM-D2743.2 m (barometer)1.61 km11,845 km
Boulder CreekM/EM-D30.48 m above ground0.20 km1,339 km
West Boulder CreekM/EM-D30.48 m above ground0.20 km898 km
East Boulder CreekM/EM-D30.48 m above ground0.20 km303 km
SweetgrassM-D228.6 m above ground0.40 km12,458 km
East PoplarM/EM-D33 m above ground0.10 km1,645 km
Northeast Mt.-Western N.D.M-D&Dz1219.2 m (barometer)4.83 km11,193 km
Powder River BasinM-D121.92 m above ground9.66 km9,949 km
Powder River R&DM/R-D121.92 m above ground9.66 km2,446 km
RoundupM/R-D121.92 m 9.66 km2,504 km
SandpointM/R-D121.92 m 1.61 km9,994 km
ShelbyM/R-D121.92 m 4.83 km3,243 km
SheridanM/R-D121.92 m 4.83 km4,665 km
SpokaneM/R-D121.92 m 1.61 km6,188 km
WallaceM/R-D121.92 m 4.83 km4,469 km
White Sulpher SpringM/R-D121.92 m 4.83 km4,434 km
Wolf PointM/R-D121.92 m 9.66 km2,475 km
Yellowstone '62M-Dz3657.6 m (barometer)1.61 km3,211 km
Northern Yellowstone '67M-Dz3657.6 m (barometer)1.61 km3,235 km
Yellowstone RegionalM-Dz4114.8 m (barometer)1.61 km9,213 km
YellowstoneM-D243.84 m above ground0.40 km23,078 km