AMP: 535 Location: WYO 270 and US-18, Niobrara Cty Reassurance shield after the 18/20 junction. No, WYO 270 does not run for another 535 miles. It goes another 40 miles but mileposts were assigned from 495 to 535 for some reason AMP: 515 Location: WYO 270 and Meadowdale Rd, Platte Cty Reassurance shield after Meadowdale … Continue reading Wyoming Highway 270, US-18/US-20 to WYO 318