(Moses Lake #4) E. of Moses Lake, Grant County, WA. WA17 (Pioneer Way) NW (curves N.) 1.4 miles from jct with I90 exit 179 SE of Moses Lake, E. on Nelson Rd. 0.45 miles to the tank on the S. side of the road. (N47 06.961 W119 14.827) Photo by Bob & Dorothy Dunham 7-6-10.