While traveling from Saint David, Az to Alamogordo, NM, I received a call from my mom telling me that we should go see the Petroglyphs located near Alamogordo. She stated that they were the best she had ever experienced. Today, we took her advice and went to Three Rivers. All I can say is WOW. Lots of petroglyphs to see, over 21,000 they say. Sure worth the visit. If you plan to go, make sure you wear great walking shoes for the rugged 1/2 mile trail. Make sure to go around both sides.