Lost Dog to Andrews-Kinsey Trail Fitness Hike at Lost Dog Trailhead  This is a Very Difficult Hike for experienced hikers because it will climb 1,200 ft. to a saddle and then continue on the Andrews-Kinsey Trail to a spectacular view overlooking the Fountain Hills Preserve. Distance: 7.8 miles. Duration: about 5 hours. Bathrooms available at the trailhead. Bring water, snacks and even a lunch for the trail. No dogs please.  Arrive 15 minutes before start of hike.