National Historical Park preserves one of America's most significant and
fascinating cultural and historic areas.
was a major center of ancestral Puebloan culture between AD 850 and 1250. It was
a hub of ceremony, trade, and administration for the prehistoric Four Corners
area - unlike anything before or since.
Chaco is remarkable for its monumental public and ceremonial buildings, and its distinctive architecture. To construct the buildings, along with the associated Chacoan roads, ramps, dams, and mounds, required a great deal of well organized and skillful planning, designing, resource gathering, and construction. The Chacoan people combined pre-planned architectural designs, astronomical alignments, geometry, landscaping, and engineering to create an ancient urban center of spectacular public architecture - one that still amazes and inspires us a thousand years later.