Gateway to Tom’s Thumb TT9 Overlook Fitness Hike from Gateway Trailhead.   This Very Difficult hike takes us to the seldom visited vistas west of Tom’s Thumb that makes you think you are in the Grand Canyon.  9.6 miles in about 5-6 hours with a big climb of 2100 ft! Bathrooms at the trailhead.  Bring water and a lunch for the trail. No dogs please.  Arrive 15 minutes before start of hike.