AMP: 187 Location:Yellowstone Hwy and I-25, Casper Reassurance shield as the routes split. This is the last extant stretch of US-87 until Raton, New Mexico. AMP: 187 Location: E Yellowstone Hwy and Western Ave, Evansville We quickly enter Evansville, one of the only suburbs in Wyoming AMP: 187 Location: E Yellowstone Hwy and Wyoming Blvd, … Continue reading U.S. Route 20, I-25/I-25 Bus/US-20 Bus/US-26 Bus/US-87 Bus to WYO 258