Chetro Ketl
	Among the Chaco great houses, Chetro Ketl is second only to Pueblo Bonito in size. It had over 500 rooms, and is noted for its great kiva more than 60 feet in diameter, several tower kivas, and its enormous elevated plaza. Its rear wall is nearly 500 feet long and stood 4 or 5 stories tall. Only a portion of the ruin has been excavated.