El Camino Real de Tierra Adentro National Historic Trail is a part of the United States National Historic Trail system. El Camino Real de Tierra Adentro (Spanish for "The Royal Road of the Interior Land") was a 1,600 mile (2560 kilometer) long trade route between Mexico City and San Juan Pueblo, New Mexico, from 1598 to 1882. The 404 mile (646 kilometer) section of the route within the United States was proclaimed as a National Historic Trail on October 13, 2000. The trail is overseen by both the National Park Service and the U.S. Bureau of Land Management with aid from El Camino Real de Tierra Adentro Trail Assoc. also known as CARTA.

• http://en.wikipedia.org/wiki/El Camino Real de Tierra Adentro