Chaco Canyon is one of the largest sites in the southwest built between 850 to 1150. It a really cool place.
Amazing in size there are 600 rooms and 5 stories high.
The drive takes a while, at least if you don’t want to beat your vehicle to death. The last 4.5 miles of a 16 mile gravel road is wash board. The peaks are 9 to 12 inches across and the valley’s are 3/4 to 1.5 inches deep. It took us long time to go the 4.5 miles. You can go a lot faster but you’ll sure pay for it in the long run.