McElmo Phase refers to a period in the late 11th and early 12th centuries, when drastic changes in ceramics and masonry techniques in Chaco Canyon appeared, archeologists initially suggested that the McElmo influence was brought to Chaco Canyon by immigrants from which site located in Montezuma County, Colorado, it protects some of the best preserved Ancestral Puebloan archaeological sites in the United States?
Mesa Verde National Park Mesa Verde National Park is a National Park and World Heritage Site located in Montezuma County, Colorado. It protects some of the best preserved Ancestral Puebloan archaeological sites in the United States.
Kin Kletso Kin Kletso is a Chacoan Ancestral Pueblo great house and notable archaeological site located in Chaco Culture National Historical Park, 25 miles southwest of Nageezi, New Mexico, US. It was a medium-sized great house located 0.5 miles (0.8 m) west of Pueblo Bonito; it shows strong evidence of construction and occupation by Pueblo peoples who migrated to Chaco from the northern San Juan Basin in the time period of 1125 to 1200 (McElmo Phase of Chacoan Architecture). From its masonry work, rectangular shape and design Kletso is identified as Pueblo III architecture by prominent Chaco archaeologists Stephen H. Lekson and Tom Windes. They also argue that this great house was only occupied by one or two households. Fagen writes that Kletso contained around 55 rooms, four ground-floor kivas, and a two-story cylindrical tower that may have functioned as a kiva or religious center. Evidence of an obsidian production industry were discovered here. The house was erected between 1125 and 1130.