Big Hollow Trail North Loop

The Big Hollow North Loop is one of Mammoth Cave's best-kept secrets — a backcountry ramble through dense hardwood forest that feels worlds away from the cave-tour crowds gathering at the visitor center. The trail winds through rolling Kentucky hill country, dipping into hollow after hollow where tulip poplars tower overhead and seasonal creeks cut shallow ravines across the path. The terrain is classic Appalachian plateau: rooty singletrack with enough short climbs and descents to keep your legs honest without ever punishing them. In spring, the forest floor erupts with trillium and Virginia bluebells. In fall, the canopy turns into a cathedral of gold and amber. At just over five miles, it's the kind of loop you can knock out in a relaxed morning and still have time to catch an afternoon cave tour. Perfect for hikers who want to see the above-ground side of Mammoth Cave that most visitors never bother to explore.