Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
AshlandM/R-D121.92 m 4.83 km3,162 km
CheboyganM/R-D121.92 m 9.66 km1,352 km
ChicagoM/R-D121.92 m 9.66 km2,052 km
DetroitM/R-D121.92 m 9.66 km1,342 km
EscanabaM/R-D121.92 m 9.66 km1,284 km
FlintM/R-D121.92 m 9.66 km1,609 km
Ft WayneM/R-D121.92 m 9.66 km2,667 km
Grand RapidsM/R-D121.92 m 9.66 km3,310 km
HancockM/R-D121.92 m 4.83 km443 km
Iron MtnM/R-D121.92 m 4.83 km4,281 km
Iron RiverM/R-D121.92 m 4.83 km3,846 km
MarquetteM/R-D121.92 m 4.83 km2,655 km
Michigan A (Iron)M-Dz152.4 m above ground0.40 km13,840 km
Michigan C (Dickinson)M-Dz152.4 m above ground0.53 km3,541 km
Michigan FM-Dz152.4 m above ground0.40 km9,817 km
Michigan B (Keweenaw)M-Dz152.4 m above ground0.80 km3,701 km
Michigan B '50M-Dz152.4 m above ground0.80 km1,046 km
Marquette Harvey CentralM-Dz152.4 m above ground1.61 km781 km
Michigan E NorthM-Dz152.4 m above ground0.40 km4,506 km
Michigan Coop '62M-Dz152.4 m above ground0.40 km2,665 km
Michigan Coop South '63M-Dz152.4 m above ground0.40 km3,541 km
Michigan Coop West '65M-Dz152.4 m above ground0.80 km2,736 km
MenomineeM-Dz152.4 m above ground0.80 km4,184 km
DeltaM-Dz152.4 m above ground0.80 km7,966 km
Upper Michigan EastM-D152.4 m above ground1.61 km3,919 km
Upper Michigan WestM-D152.4 m above ground3.22 km1,094 km
Michigan Peninsula EastM-D152.4 m above ground3.22 km1,432 km
Michigan Peninsula WestM-D152.4 m above ground1.61 km2,084 km
Limestone MountainM-D121.92 m above ground0.80 km48 km
Jacobsville Contact SouthM-D121.92 m above ground0.40 km1,487 km
Jacobsville Contact NorthR-D121.92 m above ground0.40 km303 km
Berrien CountyM/R/EM-D30.48 m above ground0.32 km542 km
Berrien County Long LinesM/R/EM-D30.48 m above ground0.32 km98 km
SE MichiganM-D30.48 m above ground0.32 km692 km
MidlandM/R-D121.92 m 9.66 km3,389 km
Northern Ohio WestM-D548.64 m (barometer)2.41 km9,503 km
Sault Sainte MarieM/R-D121.92 m 9.66 km1,465 km
Tawas CityM/R-D121.92 m 9.66 km785 km
ToledoM/R-D121.92 m 9.66 km1,732 km
Traverse CityM/R-D121.92 m 9.66 km3,568 km
Two HarborsM/R-D121.92 m 9.66 km1,365 km
FlorenceM-Dz152.4 m above ground0.40 km3,943 km
Ironwood Fill-InM-D304.8 m above ground0.80 km1,006 km
West Florence Fill-InM-D304.8 m above ground0.80 km676 km
Northeastern WisconsinM-D304.8 m above ground0.80 km10,002 km
Northeast WisconsinM-D304.8 m above ground0.80 km19,312 km
Wisconsin Tie LinesM-D304.8 m above ground0.80 km2,293 km