New Mexico State Road 120

State Road 120
NM 120 highlighted in red
Route information
Maintained by NMDOT
Length	119.031 mi[1] (191.562 km)
Major junctions
West end	NM 434 in Black Lake
Major intersections	NM 442 in Ocate I-25 (US 85) in Wagon Mound NM 271 in Wagon Mound NM 39 in Roy
East end	US 56 / US 412 toward Clayton
Location
Country	United States
State	New Mexico
Counties	Colfax, Mora, Harding, Union
Highway system
New Mexico State Highway System Interstate US State Scenic
← NM 119 → NM 121

State Road 120 (NM 120) is a 119.031-mile-long (191.562 km) state road in the U.S. state of New Mexico. The route traverses four counties: Colfax, Mora, Harding, and Union, and is the longest state road in New Mexico. The highway's only grade-separated interchange is with Interstate 25 (I-25) in Wagon Mound.