Navajos that live near here are waiting to show you a huge area chock full of dinosaur tracks. They don't ask for money, but a tip is appreciated. You can just look at the tracks right in front of you, but if you want to walk further to see more they will take you. Also, there is a small jewelry stand with very nice handmade goods at more than reasonable prices.
If you are in the area, you must take a look!