National Trails are designated routes in the United States that provide opportunities for outdoor recreation, including hiking, biking, and horseback riding. These trails are often managed by the National Park Service or other federal and state agencies, ensuring they are maintained for public use. They connect various natural and cultural landmarks, allowing people to explore diverse landscapes. The National Trails System was established by the National Trails System Act of 1968, which aimed to promote the enjoyment of outdoor activities and preserve scenic areas. This system includes various types of trails, such as National Scenic Trails, National Historic Trails, and National Recreation Trails, each offering unique experiences for visitors.