AMP: 0 Location: SH-140 and SR-170, La Plata Cty Welcome to Colorful Colorado! AMP: 6 Location: SH-140 and CR 103B, Red Mesa, La Plata Cty No signage for six miles, and then we’ll enter unincorporated Red Mesa. AMP: 7 Location: SH-140 and CR 103, La Plata Cty Reassurance shield as we head out of Red … Continue reading Colorado State Highway 140, NM-170/NM State Line to US-160