National parks in the us map. The united states has 61 protected areas known as national parks that are operated by the national park service an agency of the department of the interior. With 17 national park units and 16 national wildlife refuges the options may seem limitless. Americas best idea is a six episode series on the history of the national parks directed by ken burns and written and co produced by dayton duncan. All 13000 us and canada vehicle accessible public campgrounds with accurate latlon for your gps or smart phone campground amenities phone numbers and web links for both the campground itself and its reservation system.