[3] The route as published proceeded from Willard through Moriarty ending at Albuquerque for at total of 73 miles (117 km).
[3] US 470 was renamed US 366 when US 70 was relocated southward over the previous US 366 ending the parent route connection, but creating a new one with US 66.
[6] The final alignment of US 366 began at the intersection of NM 6 with the combined routes US 66 and US 85 at Albuquerque in Bernalillo County.
The route then passed through Barton and then crossed the southwestern corner of Santa Fe County.
The route then turned south along NM 41 and passed through Estancia before terminating at US 60 just west of Willard.