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
Northeast Washington '73M-D2134 m (barometer)1.60 km8,143 km
IncheliumM-D2134 m (barometer)1.60 km346 km
Thirty-Mile CreekM-D50 m above ground0.40 km321 km
W. Fork Sampoil RiverM/R-D121.9 m above ground0.40 km1,504 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
Northeast Washington '59M-Dz152.4 m above ground0.40 km6,348 km