Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Spokane 2013M-D200 m above ground0.40 km12,105 km
RitzvilleM/R-D121.9 m 4.80 km4,346 km
SpokaneM/R-D121.9 m 1.60 km6,187 km
Hanford ARMSM/R-Dz152.4 m above ground1.60 km13,413 km
Northeast Washington '73M-D2134 m (barometer)1.60 km8,143 km
Coulee Dam SouthM-D2134 m (barometer)1.60 km1,384 km
Midnite-Sherwood Mines W.M/R-D121.9 m above ground0.40 km1,432 km
Central Washington, Block EM-Dz304.8 m above ground0.80 km11,104 km