Chaco Culture National Historical Park
Located near the geographic center of the San Juan Basin Region in northwestern New Mexico, Chaco Culture National Historic Park (NHP) is a national park unit, listed in the National Register of Historic Places, and designated a UNESCO World Heritage Site. This park unit contains approximately 4000 prehistoric and historic archeological sites representative of Paleo-Indian, Archaic, Pueblo, and Navajo occupations. The prehistoric sites cover the period from about 8000 B.C. to 1275 A.D. and contain features that show the evolution and interrelationships of indigenous cultures through time. Sites from the Puebloan period range in size from one-room pit houses and camp sites to multi-story pueblos containing hundreds of rooms. Navajo occupation (~1650-1950 A.D.) is reflected by seasonal camps, permanent habitations, and sites of sacred importance. The park is one of only two protected areas in the San Juan Basin Region.