Quite a few U.S. national parks are listed as World Heritage Sites, and they're often in the news. There's a handy website out there run by the National Park Service's Office of International Affairs that can help you stay abreast of issues involving this sites.

Whenever something doesn't go according to plan, people understandably want to know what went wrong. And so the officials at Yosemite National Park have put together this list of frequently asked questions about what went awry with the Big Meadow fire -- a prescribed burn that quickly got out of control.

What would you think of a utility building a lengthy power-line transmission corridor through Everglades National Park on land that's highly valuable for restoring the "River of Grass"? And what would you think if such a project set a precedent that could jeopardize other National Park System lands across the nation?

A backpacker missing since Tuesday in the rugged backcountry of Great Smoky Mountains National Park has been found in good condition but will have to spend another night in the woods, officials said Saturday afternoon.