Indian Ruins, San Juan County, New Mexico
Pueblo Bonito
Pueblo Bonito, the largest and best known Great House in Chaco Culture National Historical Park and was built by ancestral Pueblo people and occupied between AD 828 and 1126. In January, 1941, a section of the canyon wall known as Threatening Rock, collapsed as a result of a rock fall, destroying some of the structure's rear wall and a number of rooms.