I-40 to Santa Rosa to Ft. Sumner Village. Take Hwy 60/84 3 miles east of the village of Fort Sumner, then south 3.5 miles on Billy the Kid Road.
As you exit the State Monument and immediately next door on Billy the Kid Road, stop by the gravesite where the infamous outlaw was buried. Also in Ft. Sumner Village is the Billy the Kid Museum, along with restaurants and antique stores near the intersection of 60/84 heading north towards Santa Rosa.
From Ft. Sumner Village take 84 west to Vaughn on 54 south to Carrizozo and follow signs east to Lincoln State Monument.
Other Nearby attractions:
Billy the Kid cemetery, Billy the Kid Museum, historic old town, antique shops in Ft. Sumner Village, Fort Sumner Lake, Bosque Redondo Lake