This is a one trailhead backpacking trail, so in and out is the way to backcountry walk it normally. This is a long wilderness trail, so don't forget to pack enough supplies. Different parts of High Trail are at very different elevations which of course means you need to be prepared for different conditions on different parts of the backcountry trail. Being 11 miles long; it's longer than many backcountry trails. The total elevation difference for High Trail is 3,624 feet which is a higher than average number. This area does get very dry sometimes, so donít forget to check for any current fire restrictions before you go. This trek should take you about 1.5 days, so better have big a backpack to fit all the stuff you need.