State Road 104
Route information
Maintained by NMDOT
Length	106.897 mi[1] (172.034 km)
Major junctions
West end	I-25 BL in Las Vegas
Major intersections	I-25 in Las Vegas NM 419 in Tremetina NM 129 near Conchas
East end	I-40 BL / NM 209 in Tucumcari
Location
Country	United States
State	New Mexico
Counties	San Miguel, Quay
Highway system
New Mexico State Highway System Interstate US State Scenic
← NM 103 → NM 105

New Mexico State Road 104 (also termed State Highway 104 or NM 104) is a 106.9-mile-long (172.0 km) state highway in the U.S. state of New Mexico. The route travels through San Miguel and Quay counties, and through the communities of Las Vegas, Alta Vista, Trementina, Garita, and Tucumcari.

County	Location	mi[2]	km	Destinations	Notes
San Miguel	Las Vegas	0.000	0.000	I-25 BL (Grand Avenue) to NM 65 / NM 518	Western terminus; road continues as University Avenue
		0.330	0.531	I-25	Exit 345 on I-25
	​	1.570	2.527	NM 281 south – Las Vegas National Wildlife Refuge	Northern terminus of NM 281
	Trementina	46.334	74.567	NM 419 north – Mosquero	Southern terminus of NM 419
	Mesa Rica	69.551	111.931	NM 129 south to I-40	Northern terminus of NM 129
	​	74.590	120.041	NM 432 north – Big Mesa	Southern terminus of NM 432
	​	75.670	121.779	NM 433 north – Conchas Dam	Southern terminus of NM 433
Quay	Tucumcari	106.393	171.223	NM 237 (Bus. Loop US 54)
		106.897	172.034	Historic US 66 (I-40 BL) / NM 209 south (First Street south)	Eastern terminus; northern terminus of NM 209; road continues south as NM 209 (First St.) towards Dr. Dan C. Trigg Memorial Hospital
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Route transition

• List of state roads in New Mexico

Media related to New Mexico State Road 104 at Wikimedia Commons