A favorite of cyclists, the park’s historic carriage roads offer 45 miles of woodland that’s free of motor vehicles.

President Donald Trump's former agriculture secretary wants the administration to support adding the Okefenokee Swamp's vast ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface of Mammoth Cave National Park encompasses about 80 square miles.

"All of a sudden the entire team let out a yell of excitement." Researchers stunned by rare sight caught on trail camera deep ...