The total elevation difference for Willow Spring Trail is 5,105 feet which is a higher than average number. Willow Spring Trail is a one trailhead backcountry hiking trail, so in and out is the way to walk it normally. This hiking trail goes through some very different elevations, so keep in mind that you may need to dress differently at different elevations. This area does get very dry sometimes, so do check for current fire restrictions before you go if you plan to bring a stove or make a camp fire. Of course, this is an overnight hike, 5 days normally, so it's a good thing if your backpack is big enough to do the job. Willow Spring Trail is quite long, so do pack enough food to last the whole trip. Being 34.2 miles long; it's considered a longer hike.