Kin Kletso is a Chacoan Ancestral Pueblo great house in Chaco Canyon, built around 1125 to 1130 during the McElmo Phase and reflecting Pueblo III architectural traditions. Archaeologists have linked it to Pueblo peoples who migrated into Chaco from the northern San Juan Basin between 1125 and 1200, and the site helps show late construction and shifting community patterns in the wider Chacoan landscape. Medium-sized at about 55 rooms, it included four ground-floor kivas and a two-story cylindrical tower that may have served religious purposes. Evidence of obsidian production was also found there, and it may have housed only one or two households despite its scale.