U.S. Route 285 in New Mexico
| US 285 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of US 85 | ||||
| Maintained by NMDOT | ||||
| Length | 407.0 mi (655.0 km) | |||
| Existed | 1934–present | |||
| Major junctions | ||||
| South end | US 285 at Texas state line | |||
| North end | US 285 at Colorado state line | |||
| Location | ||||
| Country | United States | |||
| State | New Mexico | |||
| Counties | Eddy, Chaves, De Baca, Lincoln, Guadalupe, Torrance, San Miguel, Santa Fe, Rio Arriba, Taos | |||
| Highway system | ||||
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U.S. Route 285 (US 285) is a north–south U.S. highway that runs from Sanderson, TX to Denver, CO. US 285 enters the state of New Mexico from Texas, into Eddy County, NM just south of Loving. The highway runs through the major cities of Carlsbad, Roswell, and Santa Fe. The highway exits the state into Colorado approximately 25 miles north of Tres Piedras. The Pecos River runs adjacent to the vast stretch of highway, yet breaks away in Northern New Mexico, before entering Colorado.