We’ll hike six miles round trip to the beautiful Arizona Hot Springs located in a dramatic slot canyon that joins the river just downstream of Ringbolt Rapids. The spring forms several pools about 1,000 feet from the river, where the canyon walls are nearly vertical and about 6 to 9 feet apart. Directly at the source, the spring discharges highly mineralized water at a rate of about 30 gallons per minute and a temperature of about 111 degrees Fahrenheit. The spring issues from fractures in Miocene-age volcanic rocks near the intersection of two faults.