U.S. Route 550

U.S. Route 550
U.S. Route 550
Million Dollar Highway
	US 550 highlighted in red
Route information
	Auxiliary route of US 50
Length	305.104 mi (491.017 km)
Existed	1926–present
Major junctions
South end	I-25 / US 85 / NM 165 in Bernalillo, NM
	US 64 in Bloomfield, NM; US 160 in Durango, CO;
North end	US 50 at Montrose, CO
Location
Country	United States
States	New Mexico, Colorado
Counties	NM: Sandoval, Rio Arriba, San Juan; CO: La Plata, San Juan, Ouray, Montrose
Highway system
	United States Numbered Highway System; List; Special; Divided;

U.S. Route 550 (US 550) is a spur of U.S. Highway 50 that runs from Bernalillo, New Mexico to Montrose, Colorado in the western United States. The section from Silverton to Ouray is frequently called the Million Dollar Highway.^[3] It is one of the roads on the Trails of the Ancients Byway, one of the designated New Mexico Scenic Byways.^[4]

^ Cite error: The named reference NMDOT was invoked but never defined (see the help page).
^ Cite error: The named reference CODOT was invoked but never defined (see the help page).
^ Road Trip America – Million Dollar Highway by Mark Sedenquist accessed Oct 21, 2007
^ Trail of the Ancients. Archived August 21, 2014, at the Wayback Machine New Mexico Tourism Department. Retrieved August 14, 2014.