Calling spotty, and in many places non-existent, cellphone and Internet service in the National Park System a possible "irritant that adversely shapes memories of a park visit," the National Park Hospitality Association is pushing the National Park Service to greatly expand the service across the system.

Do you enjoy national parks, consider yourself a good communicator, and live near Rocky Mountain National Park? If so, the park could use you, as it has a number of openings in its summer volunteer program.

The process has taken over three decades, but Petrified Forest National Park now has its first published geological map—and in the world of rocks, it's a star

Climate change continues to hover over various iconic aspects of the National Park System -- the glaciers in Glacier National Park, Joshua Trees at Joshua Tree National Park, and now perhaps the Haleakalā silversword plant at Haleakalā National Park in Hawaii.