The total elevation difference for this great outdoors hiking trail is 1,645 feet which is about average. There is only one trailhead, so in and out is the way to trek it normally. Being 9.6 miles long; it's longer than many great outdoors hiking trails. The time needed for this trek is roughly 8 hours, but of course some folks walk a bit slower and some a bit faster. This hiking and backpacking trail sometimes gets very dry, so donít forget to check for any current fire restrictions before you go. This great outdoors hiking trail goes through some very different elevations which of course means you need to be prepared for different conditions on different parts of the great outdoors hiking trail. Union Peak Trail is quite long, so do pack enough food to last the whole trip.