List of Ancestral Puebloan dwellings in Colorado
McElmo Drainage Unit
The McElmo Drainage Unit, located in Montezuma and Dolores Counties, consists of tributaries of McElmo Creek, situated north of the northern slopes of Mesa Verde and Ute Mountain, that is part of the northern San Juan River drainage.

List of Ancestral Puebloan dwellings in Colorado

Section Title: McElmo Drainage Unit
Table Section Text: The McElmo Drainage Unit, located in Montezuma and Dolores Counties, consists of tributaries of McElmo Creek, situated north of the northern slopes of Mesa Verde and Ute Mountain, that is part of the northern San Juan River drainage.

Site name	Pueblo peoples	Period	Nearest town (modern name)	Location	Type	Description	Photo

Albert Porter Pueblo (Site ID 5MT123)	Anasazi	Pueblo II, Pueblo III	Yellow Jacket	Private owner	Great house	Albert Porter Pueblo, also known by its Site ID and as Hedrick Ruin, was a small puebloan North San Juan village.

Unnamed (Site ID 5MT4700)	Anasazi	Pueblo III	Yellow Jacket	There was one occupation from 1200–1250 of the Mesa Verde culture site.

Bass Site (Site ID 5MT136)	Anasazi	Pueblo II	Yellow Jacket	Federal owner	There was one occupation with Great Houses at the Bass Site from 1080–1150, with its peak period about 1125. Based upon reporting to the Colorado Historical Society, occupancy extended into the early 13th century.

Cannonball Ruins (Site ID 5MT338)	Anasazi	Late Pueblo II, Pueblo III	Cortez	Private owner	Cannonball Ruins, part of the Great Pueblo Period of the McElmo Drainage Unit, was occupied from 1140-1300. The large settlement had architectural characteristics similar to the nearby Hovenweep pueblos.

James A. Lancaster Site (Site ID 5MT4803)	Anasazi	Basketmaker, Pueblo I-III	Pleasant View	Private owner	Ruins also called Clawson Ruins were of the Pueblo tradition from the broad periods of 1-1499 AD [Pueblo people left Montezuma County area by 1300.] The previous village, added to the National Register of Historic Places in 1980, is now owned by a private individual and is located under water.

Joe Ben Wheat Site Complex (Site ID 5MT.16722)	Anasazi	Pueblo II, Pueblo III	Yellow Jacket	Ruins from about 1075-1300. The site is a large multi-component site with 90 rooms and 14 kivas.

Mitchell Springs Archeological Site (Site ID 5MT.10991)	Anasazi	Basketmaker, Pueblo I, Pueblo II	Cortez	Private owner	Ruins from 500 - 1000, also known as the Mitchell Springs Ruin Group, is a Northern San Juan pueblo. It was added to the National Register of Historic Places in Montezuma County in 2001.

Mud Springs Pueblo (Site ID 5MT4466)	Anasazi	Pueblo III	Cortez	Private owner	Ruins, also called Toltec Springs, was occupied from 1200–1250, with its peak period about 1225. The community had reservoirs and construction with double or triple walls.

Pigge Site (Site ID 5MT4802)	Anasazi	Basketmaker, Pueblo I-III	Pleasant View	Private owner	There was an occupation, with roads, at the Pigge Site from 1175–1225, with its peak period about 1200. The National Register of Historic Places reports occupation through the broad periods of AD 1 - 1499 [by 1300 puebloan people from southwestern Colorado had migrated out of their pueblos.] The site, added to the National Register of Historic Places in 1980, is currently under water.

Roy's Ruin (Site ID 5MT3930)	Anasazi	Pueblo III	Cortez	Roy's Ruin, part of the Great Pueblo Period of the McElmo Drainage Unit, was occupied in the early 13th century. It is a classic Prudden Unit.

Seven Towers Pueblo (5MT1000)	Anasazi	Pueblo III	Yellow Jacket	Federal owner	The Northern San Juan pueblo ruins from about 1150-1300 was added to the National Register of Historic Places in 1999.

Wallace Ruin (Site ID 5MT5670)	Anasazi	Pueblo II, Pueblo III	Cortez	Private	Wallace Ruin, was a Northern San Juan and Chaco pueblo inhabited during the broad 1000 to 1499 period [Ancient Pueblo People left southwestern Colorado by 1300].

Woods Canyon Pueblo (Site ID 5MT.11842)	Anasazi	Pueblo II, Pueblo III	Yellow Jacket	Federal	Great house	Woods Canyon Pueblo, also known as Wood Canyon Ruin, was a Northern San Juan pueblo inhabited during the broad 1000 to 1499 period [Ancient Pueblo People left southwestern Colorado by 1300].

Yellow Jacket Pueblo (Site ID 5MT5)	Anasazi	Pueblo II, Pueblo III	Yellow Jacket	Private owner.	Great house	Yellowjacket pueblo experienced two periods of occupation. The first occurred between 1075 and 1150, with peak residency in 1125.

Sentence(s)

Bass Site occupied early 13th century.

final_sentence: Bass Site occupied early 13th century.