Passenger vehicles can drive north of Silver City, New Mexico to the monument on NM Hwy 15. The 46 mile trip can take up to two hours due to the narrow and mountainous curving nature of the road. Large RVs and vehicles pulling trailers should NOT use NM Hwy 15. From Silver City, take US Highway 180 to Santa Clara. Turn left onto NM Hwy 152 and drive to San Lorenzo. At San Lorenzo, turn left onto NM Hwy 35 and follow it to its termination at NM Hwy 15. Turn right on NM Hwy 15 and follow signs to the park.