Clear Fork Trail has a total elevation difference of 2,000 feet, and that is about average. Some parts of this trail are much higher up than other parts of the trail which of course means you need to be prepared for different conditions on different parts of the trail. Clear Fork Trail is 18.2 miles long; it's considered a longer backcountry hike. Clear Fork Trail is quite long, so make sure you bring plenty of supplies. This trek should take you about 2.5 days, so it's a perfect thing if your backpack is big enough to do the job. This wilderness trail has only one trailhead, so you're looking at an in and out trek.