NRT logo, technical and networking assistance, and preference for funding through the Department of Transportation's Recreational Trails Program. American Trails sponsors an annual NRT photo contest and a biennial symposium and maintains the NRT database. National Geologic Trail The first national geologic trail was established by the Omnibus Public Land Management Act of 2009, though it did not amend the National Trails System Act to create an official category. See also Protected areas of the United States List of long-distance footpaths Long-distance trails in the United States References Further reading Karen Berger, Bart Smith (photography), and Bill McKibben (foreword): America's Great Hiking Trails. Rizzoli, 2014, Karen Berger, Bart Smith (photography), and Ken Burns & Dayton Duncan (foreword) (2014), America's National Historic Trails: Walking the Trails of History. Rizzoli, 2020, External links Partnership for National Trails System National Trails System – National Park Service National Historic Trails National Scenic Trails National Recreation Trails America's National Trails – U.S. Forest Service National Scenic and Historic Trails – Bureau of Land Management National Recreation Trails Program – American Trails National Recreation Trails database The National Trails System: A Brief Overview – Congressional Research Service 01 Trails Hiking trails in the United States Scenic highways in the United States United States federal public land legislation 1968 in law 1968 in the United States