MP: 260.87 Location: US-97 and Plaza Way, Brewster Reassurance shield as we leave Brewster MP: 260.91 Location: US-97 and Plaza Way, Brewster 4 miles to JCT SR 17, the main route down to Bridgeport, located right where the Okanogan flows into the Columbia. MP: 264.66 Location: US-97 and Cassimar Bar Rd, Okanogan Cty SR 17 … Continue reading U.S. Route 97, SR 173 to SR 17