Ancient Lakes of Columbia Valley

(1) The beginning point is on the West Bar map where the western shoreline of the Columbia River in Kittitas County intersects with the north boundary line of section 8, T20N/R22E. Proceed east along the section boundaries for approximately 4.35 miles, over the Columbia River and into Douglas County, to the intersection of the line with the Grant and Douglas Counties common boundary line (concurrent with the R22E and R23E common line) at the northwest corner of section 12, T20N/R22E; then (2) Proceed north along the Grant and Douglas Counties common boundary line for approximately 2.25 miles, onto the Rock Island Dam map, to the northwest corner of section 31, T21N/R23E; then (3) Proceed east in a straight line along the section boundaries for approximately 12.1 miles, over the Appledale and Monument Hills maps, onto the Ephrata SW map to the intersection of the line with the R24E and R25E common line at the northwest corner of section 36, T21N/R24E; then (4) Proceed south along the R24E and R25E common line for approximately 22.5 miles, over the Winchester and Winchester SW maps, onto the Royal City map, passing over the West Canal and into the Frenchman Hills, to the southwest corner of section 12, T17N/R24E (concurrent with the intersection of the R24E and R25E common line and a single transmission line); then (5) Proceed west in a straight line along the section boundaries …