Chaco Culture National Historical Park [SEP] inception
, and limited excavations began during this time. The Chaco Center extensively surveyed the Chacoan roads, well-constructed and strongly reinforced thoroughfares radiating from the central canyon.
The richness of the cultural remains at park sites led to the expansion of the small National Monument into the Chaco Culture National Historical Park on December 19, 1980, when an additional were added to the protected area. In 1987, the park was designated a World Heritage Site by UNESCO. To safeguard Chacoan sites on adjacent Bureau of Land Management and Navajo Nation
Chaco Culture National Historical Park
Chaco Culture National Historical Park is a United States National Historical Park in the American Southwest hosting a concentration of pueblos. The park is located in northwestern New Mexico, between Albuquerque and Farmington, in a remote canyon cut by the Chaco Wash. Containing the most sweeping collection of ancient ruins north of Mexico, the park preserves one of the most important pre-Columbian cultural and historical areas in the United States.
Between AD 900 and 1150, Chaco Canyon was a major center of culture for the