Colorado State Highway 150

State Highway 150
Map of Alamosa County in southern Colorado with SH 150 highlighted in red
Route information
Maintained by CDOT
Length:	16.1 mi (25.9 km)
Major junctions
South end:	US 160 west of Blanca
North end:	Great Sand Dunes National Park
Location
Counties:	Alamosa
Highway system
Colorado State Highways Interstate U.S. State Scenic ← SH 149 SH 151 →

State Highway 150 is a 16.1 mi (25.9 km) long state highway in southern Colorado.

SH 150 begins in the south at its junction with U.S. Highway 160 roughly fifteen miles east of Alamosa and about six miles (10 km) east of Blanca. For much of its length the road heads arrow straight due north across the eastern margin of the broad, flat, nearly featureless San Luis Valley between the Sangre de Christo Mountains in the east and the San Juan Mountains to the west. The road eventually deviates from its due north heading as it approaches its northern endpoint at Great Sand Dunes National Park.

The first route to use the number 150 was established in the 1920s, when it connected SH 17 at Mosca to SH 69 at Gardner over Mosca Pass which is no longer maintained for automobile travel. The route was deleted by 1954 and resurrected in 1960, when it connected Mosca with the Great Sand Dunes National Park. This routing was deleted in 1973 and resurrected again to its current routing today the following year.

The entire route is in Alamosa County.