National Trails System
A division of the National Park Service (NPS): The National Trails System provides for the ever-increasing outdoor recreation needs of an expanding population; promotes the preservation of, public access to, travel within, and enjoyment and appreciation of the open-air, outdoor areas, and historic resources of the United States.
The National Trails System promotes the appreciation and enjoyment of trails while encouraging greater public access. The system includes national historic trails, national scenic trails, and national recreation trails.The National Park Service encourages all public and private agencies to develop, maintain, and protect trails.