Camino Real de Tierra Adentro

Camino Real de Tierra Adentro
Map of El Camino Real de Tierra Adentro
Location	Mexico and the United States
Governing body	Instituto Nacional de Antropología e Historia (Mexico) National Park Service, Bureau of Land Management (United States)
Website	El Camino Real de Tierra Adentro National Historic Trail
UNESCO World Heritage Site
Location	Mexico
Criteria	Cultural: (ii), (iv)
Reference	1351
Inscription	6969 (4991st Session)
Area	3,101.91 ha (7,665.0 acres)
Buffer zone	268,057.2 ha (662,384 acres)

The Camino Real de Tierra Adentro (English: Royal Road of the Interior Land), also known as the Silver Route,^[1] was a Spanish 2,560-kilometre-long (1,590 mi) road between Mexico City and San Juan Pueblo (Ohkay Owingeh), New Mexico (in the modern U.S.), that was used from 1598 to 1882. It was the northernmost of the four major "royal roads" that linked Mexico City to its major tributaries during and after the Spanish colonial era.^[2]

In 2010, 55 sites and five existing UNESCO World Heritage Sites along the Mexican section of the route were collectively added to the World Heritage List,^[3] including historic cities, towns, bridges, haciendas and other monuments along the 1,400-kilometre (870 mi) route between the Historic Center of Mexico City (an independent World Heritage Site) and the town of Valle de Allende, Chihuahua.

The 404-mile (650 km) section of the route within the United States was proclaimed the El Camino Real de Tierra Adentro National Historic Trail, a part of the National Historic Trail system, on October 13, 2000. The historic route is overseen by both the National Park Service and the U.S. Bureau of Land Management with aid from the El Camino Real de Tierra Adentro Trail Association (CARTA). A portion of the trail near San Acacia, New Mexico, was listed on the U.S. National Register of Historic Places in 2014.^[4]