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.
Northern Rio Grande National Heritage Area Northern Rio Grande National Heritage Area is a federally designated National Heritage Area in the U.S. state of New Mexico. The national heritage area includes a section of the upper Rio Grande Valley that has been inhabited by the Puebloan peoples since the early Pre-Columbian era.