The Camino Real de Tierra Adentro (Spanish for "Royal Road of the Interior Land") was a 2560 kilometer (1,600 mile) long trade route between Mexico City and San Juan Pueblo, New Mexico, from 1598 to 1882.
In 2010, 55 sites and 5 existing World Heritage Sites along the Mexican section of the route became an entry on the Unesco World Heritage List. Those sites include historic cities, towns, bridges, haciendas and other monuments along the 1,400km route between the Historic Center of Mexico City (independent World Heritage Site) and the town of Valle de Allende, Chihuahua.
The 404 mile (646 kilometer) section of the route within the United States was proclaimed as a part of the National Historic Trail system on October 13, 2000. El Camino Real de Tierra Adentro National Historic Trail is…