Colorado State Highway 370State Highway 370 is a state highway near Alamosa, Colorado. SH 370's western terminus is at SH 15 near Monte Vista National Wildlife Refuge, and the eastern terminus is at U.S. Route 285 south of Alamosa.Route descriptionSH 370 runs, starting at a junction with SH 15 near Monte Vista National Wildlife Refuge and ending straight east at a junction with US 285 just south of Alamosa.