The 2-mi narrow asphalt road twists through a deep canyon and passes the 40-foot Firehole Falls. In summer look for a sign marking a pullout and swimming hole. This is one of only two places in the park (Boiling River on the North Entrance Road is the other) where you can safely and legally swim in the park's thermally heated waters. Look carefully for osprey and other raptors.
1 mi south of Madison junction off Grand Loop Rd., Yellowstone National Park, Wyoming, United States