| State: | NM |
| Type: | SR |
| Route: | 518 |
| Map Custom: | yes |
| Map Notes: | NM 518 highlighted in red |
| Maint: | NMDOT |
| Tourist: | Part of High Road to Taos Scenic Byway between NM 75 and NM 68 |
| Length Mi: | 72.899 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | 7th Street / Mills Ave. in Las Vegas |
| Junction: |
|
| Direction B: | North |
| Terminus B: | in Ranchos de Taos |
| Counties: | San Miguel, Mora, Taos |
| Previous Type: | NM |
| Previous Route: | 516 |
| Next Type: | NM |
| Next Route: | 519 |
State Road 518 (NM 518) is a 72.899-longNaN-long state highway in northern New Mexico. NM 518 begins as a continuation of 7th Street at Mills Avenue near Interstate 25 (I-25) in Las Vegas. It proceeds north to La Cueva where the road turns northwest at its junction with NM 442. The road continues northwest through Mora and eventually ends in Ranchos de Taos at its northern terminus at NM 68. The segment of NM 518 between Mora and Ranchos de Taos passes through the rugged terrain of the Sangre de Cristo Mountains and provides access to Carson National Forest where camping, fishing, skiing, and other recreational opportunities are available.