10 Most Endangered National Parks

"A conservation group's annual list of the 10 "most endangered" national parks has six holdovers from last year, still considered victims of dirty air, inadequate funding and bad policy.The National Parks Conservation Association again named Big Thicket National Preserve in Texas as well as five national parks: Great Smoky Mountains in North Carolina and Tennessee; Joshua Tree in California; Shenandoah in Virginia; Everglades in Florida; and Yellowstone in Wyoming, Montana and Idaho."

Thanks to Abhijeet Chavan