I hiked up the Mud brook trail to the summit of Caribou and returned using the Mud brook trail to the Caribou trail. I first hiked this trail 20 years ago, the trail was marked very clearly back then. Not as clearly marked today. The trail is well worn when you reach the summit you’ll see a few small cairns but you need to really look for them. The caribou trail is well worn but when get close to the waterfalls and big pool pay close attention the trail crosses over the brook at the top of the falls. There is a trail on the right before you cross heading down to the pool, if you’re not paying attention you’ll miss the trail crossing like i did and wander a round for a while looking for it. Overall a great hike the bugs were insane on the descent. The hike took me round trip 4 hours the guide book says 5 i was probably moving fast to get away from the bugs