[[:file:applying-magnetotellurics_fig16-8.png|Figure 1]] is a 13-station MT natural source survey profile. This east-west section begins near the Idaho-Washington border and extends approximately [[length::75 mi]] (120 km) to the west (Mills, personal communication, 1994). | [[:file:applying-magnetotellurics_fig16-8.png|Figure 1]] is a 13-station MT natural source survey profile. This east-west section begins near the Idaho-Washington border and extends approximately [[length::75 mi]] (120 km) to the west (Mills, personal communication, 1994). |