The Big Spring Spur branches off the Between the Rivers Section of the OT that runs just over seven miles through quiet forest and rocky creek beds. Though moderately challenging, the trail provides access to Big Spring—the largest freshwater spring in North America. Navigation can be tricky due to sparse blazes and overgrown stretches, so an offline komoot GPS route or detailed map is a good idea. Additionally, the trail also leads to Big Springs Lodge and campground, which makes the detour well worth the trek if you're looking for an overnight stay during a long hike.