Get to know your national parks during National Park Week

(April 17, 2013) -- From April 20 through 28 the National Park Service and the National Park Foundation present National Park Week 2013. This year’s theme, “Did you know…” is an opportunity for Americans to things about their 401 national parks. With FREE ADMISSION to all parks from April 22 through 26, it is also a great time to explore parks in your own backyard or across the country.