MP: 6.22 Location: Riverside Dr and US-97, Omak Reassurance shield at the beginning of the route. Note that the unofficial 97 Business is signed more prominently. Business routes do not officially exist in Washington State and in this case it follows SR 215 for its entire length in order to keep it as a state … Continue reading State Route 215, US-97/SR 20 to SR 155 SPUR