AMP: 0 Location: US-20 and Yellowstone Hwy, Natrona Cty Reassurance shield after the 20/26 business split. This route will head as a freeway to I-25/US-87, being the only non-interstate freeway in the entire state AMP: 2 Location: US-20 and Salt Creek Hwy, Natrona Cty There is no WYO 254 signage, but this is where you’d … Continue reading U.S. Route 20, US-20 Bus/US-26 Bus/WYO 257 to WYO 254