(Horse & Bridge) NW of Prosser, Benton County, WA. Gap Rd. S. 0.1 miles from jct with I82 exit 80 NW of Prosser, W. (curves NW) on Wine Country Rd. 0.6 miles to the tank on the W. side of the road. (N46 13.512 W119 48.045) Photos by Bob & Dorothy Dunham 09-2012.