6. Oneonta Gorge, Oregon
At the end of the Oneonta Trailhead in Oregon, you’ll come to the Oneonta Gorge, a creek that flows right out of a slot canyon (via Buzzfeed). It’s covered in green moss and surrounded by many trees. You’ll think you’re lost in the wilderness. Thankfully, there are plenty of signs to get you there and back so you can stay on the trail. Exercise care when walking to the creek bed as this isn’t an official trail and isn’t maintained by the park (via Buzzfeed).