Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Washington-Idaho-MontanaM-Dz2134 m (barometer)3.20 km8,441 km
OkanoganM/R-D121.9 m 1.60 km7,909 km
RitzvilleM/R-D121.9 m 4.80 km4,346 km
SandpointM/R-D121.9 m 1.60 km9,994 km
SpokaneM/R-D121.9 m 1.60 km6,187 km
Spokane 2013M-D250 m above ground0.40 km km
Northeast Washington '73M-D2134 m (barometer)1.60 km8,143 km
IncheliumM-D2134 m (barometer)1.60 km346 km
Mt. Leona-Nancy CreekM/R-D121.9 m above ground0.40 km6,529 km
Midnite-Sherwood Mines W.M/R-D121.9 m above ground0.40 km1,432 km
Spirit PlutonM/R-D121.9 m above ground0.40 km957 km