The Great Allegheny Passage is a 150-mile long rail-trail that connects Pittsburgh, Pennsylvania to Cumberland, Maryland. It follows the path of former railroad lines and offers a scenic route for walking, biking, and horseback riding. The trail features beautiful landscapes, including rivers, forests, and mountains, making it a popular destination for outdoor enthusiasts. Along the trail, visitors can explore various towns and attractions, including Ohiopyle State Park and the C&O Canal National Historical Park. The passage is part of a larger network of trails, promoting eco-tourism and providing a safe space for recreational activities.