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Airborne geophysical surveys

Counties of Minnesota

Survey name Type Altitude Spacing Flight line distance
AshlandM/R-D121.9 m 4.80 km3,162 km
BemidjiM/R-D121.9 m 9.60 km2,248 km
BrainerdM/R-D121.9 m 9.60 km2,282 km
DuluthM/R-D121.9 m 9.60 km2,259 km
Eau ClaireM/R-D121.9 m 4.80 km4,224 km
FairmontM/R-D121.9 m 9.60 km2,602 km
FargoM/R-D121.9 m 9.60 km2,341 km
Grand ForksM/R-D121.9 m 9.60 km2,301 km
HancockM/R-D121.9 m 4.80 km442 km
HibbingM/R-D121.9 m 9.60 km2,248 km
Manson (Blanden)M-A304.8 m above ground1.60 km1,770 km
DecorahM/G-D79 m above ground0.40 km3,411 km
Northwest IowaM-A304.8 m above ground1.60 km19,199 km
Northeast IowaM-A304.8 m above ground1.60 km12,713 km
International FallsM/R-D121.9 m 9.60 km1,089 km
KenoraM/R-D121.9 m 9.60 km59 km
La CrosseM/R-D121.9 m 9.60 km2,602 km
Mason CityM/R-D121.9 m 9.60 km2,602 km
MilbankM/R-D121.9 m 9.60 km2,365 km
Elk River ARMSM-A152.4 m above ground1.60 km16,093 km
WasecaM-Dz304.8 m above ground1.60 km13,759 km
Minnesota Coop SouthwestM-Dz304.8 m above ground1.60 km16,173 km
PineM-A304.8 m above ground1.60 km692 km
SwiftM-Dz304.8 m above ground1.60 km14,162 km
Effie-Coon LakeM-D91 m above ground0.40 km1,979 km
Northeastern surveysM-D150 m above ground0.40 km100,000 km
East-central surveysM-D150 m above ground0.40 km74,000 km
Central surveysM-D150 m above ground0.40 km55,000 km
West-central surveysM-D150 m above ground0.40 km82,000 km
Northwestern surveysM-D150 m above ground0.40 km44,500 km
Southwestern surveysM-D200 m above ground0.50 km81,000 km
Southeastern surveys part 1M-D200 m above ground0.50 km km
Southeastern surveys part 2M-D200 m above ground0.50 km km
Southeastern surveys part 3M-D200 m above ground1.00 km km
Twin CitiesM-D150 m above ground1.60 km2,500 km
North-central surveysM-D91 m above ground0.38 km60,000 km
Lake of the WoodsM-D300 m above ground0.93 km2,000 km
NE North DakotaM-D152.4 m above ground0.40 km29,265 km
New UlmM/R-D121.9 m 4.80 km4,586 km
QueticoM/R-D121.9 m 9.60 km297 km
RoseauM/R-D121.9 m 9.60 km1,889 km
Sioux FallsM/R-D121.9 m 9.60 km2,380 km
St CloudM/R-D121.9 m 4.80 km4,473 km
StillwaterM/R-D121.9 m 9.60 km2,315 km
St PaulM/R-D121.9 m 9.60 km2,348 km
Thief River FallsM/R-D121.9 m 9.60 km2,277 km
Two HarborsM/R-D121.9 m 9.60 km1,364 km
WatertownM/R-D121.9 m 9.60 km2,381 km
Northwest WisconsinM-D91 m above ground0.80 km6,316 km
Northern Wisconsin '96M/V-D152.4 m above ground0.80 km10,780 km
West-Central WisconsinM-D304.8 m above ground0.80 km14,459 km
Southwest WisconsinM-D304.8 m above ground0.80 km22,128 km
Wisconsin Tie LinesM-D304.8 m above ground0.80 km2,293 km