10. Big Bend National Park, Texas
Holy disclosure, Batman—let’s get this right out up front: Big Bend is known for its bats. Wilderness.org says “The Chisos Mountains are named for the spooks that make noises at night. Various ghosts include a betrayed Indian chief, a band of Spanish warriors, and even a horse seeking revenge against the cowboys who branded him with the word ‘murder.’”
11. Iron Goat Trail, Washington
Located in Stevens Pass in the Cascades, this was the site of one of the worst train disasters in U.S. history. An avalanche crushed two trains while they were at a depot, and 100 people died. The Great Northern Railroad abandoned the tracks and built new tunnels and routes, but the old ones remain. Hikers report still hearing screams and shouts along the Tye Creek crash site, in the now-ghost town of Wellington. Hikers are not allowed on the trail at night, and no one should enter the tunnels. Except for ghosts.