This official National Park Service publication is the handiest, most comprehensive map and list of ALL of the more than 400 sites managed by the NPS-- not just national parks, but also battlefields, historic sites, recreation areas, scenic rivers, parkways, trailways, and more. It's the best way to start a roadtrip plan, or to find an interesting detour along the way.
The official map is revised and reprinted approximately every 10 years, sometimes years after all copies of the previous edition have been distributed. This 2016 edition is the most current, and may become increasingly hard to find.
Approx. 8.5" x 4", the same dimensions and style as official park "unigrid" brochures