(Foot, 2002) across BNSF RR tracks in Seattle, King County, WA. Mercer St. W. (curves NW) 1.9 miles from jct with I5 exit 166 in Seattle, continue NW Elliott Av. W 0.2 miles to the bridge on the W. side of the road. (N47 37.70 W122 22.30) Photo by Mark Comstock 7-24-04.