The beginning portion of this tour includes the Historic District and proceeds into the high peaks of the Mule Mountains, northwest of Bisbee, topping at an elevation of approximately 7600 feet. (So it is cooler on this tour, you might need a jacket.) These tours cover the same ground, up into the high peaks of the Mule Mountains, northwest of Bisbee. The Sky Island runs at any time of the day, while the Sunset is timed to arrive at the top in time to catch the sun setting over the Huachuca Mountains. Sky Island is a term that refers to the basin-and-range country of south-eastern Arizona, with its varied ecosystems. You’ll also see miles of rugged terrain throughout southern Arizona and northern Mexico. GREAT PHOTO OPPS! RESERVATIONS REQUIRED FOR SUNSET TOUR, AT LEAST 24 HOURS PRIOR TO TOUR.