Casas Grandes is a 50 mile drive south of the New Mexico, USA border into Chihuahua, Mexico on a good highway. The adobe or mud city is partially restored and provides a good example of how the pueblo native americans settled down. The adjoining museum is excellent. Nuevo Casas Grandes is just 15km down the road with great restaurants and motels. Also, you don't need to speak Spanish to get there. Like other pueblo indian sites, the dwellings are apartment style buildings with everyone living in close quarters.