MP: 239.57 Location: US-97 Alternate and US-97, Chelan Reassurance shield at the beginning of the route. Washington signs its US Route as ALT 97 with the ALT inside the shield. Most states just toss a banner on top that says “ALTERNATE” or would call this 97A. Not Washington. Makes for a neat shield though (if … Continue reading Alternate U.S. Route 97, US-97 to SR 150