Thrall (latitude 46.93 and longitude -120.511) is the last station you would pass through before entering the Yakima Canyon. The name was chosen by railway officials when a siding was built in 1888 to honor Nelson C. Thrall, chief clerk to Thomas F. Oakes, general manager of Northern Pacific Railway Company in 1883. A post office operated from March of 1911 to June 1915.