Taliesin, Old Jeep and Ringtail Fitness Hike at Lost Dog Wash Trailhead Come hike some of the original trails in the Preserve with great views of Scottsdale and the desert. Location: Lost Dog Wash Trailhead - 12601 N. 124th St. Scottsdale, AZ 85259 Skill level: Difficult Distance: ~5.5 miles Time: ~3 hours Bathrooms are available