It's time to test your national parks knowledge and learn a little bit of national parks trivia, too, with the latest National Parks Quiz and Trivia piece (#14). See how much you know about the nation's protected lands before checking the answers at the bottom of the piece.

It's time to exercise your national park brain muscles again, with this Quiz and Trivia #9. See just how much you know and learn a little something at the same time.

While the U.S. Bureau of Land Management recently deferred the auction of oil and gas leases near Great Sand Dunes National Park and Preserve in Colorado, the issue of energy development is not dead there, nor in many other areas of the National Park System. Contributor John Miles takes a look at the state of oil and gas exploration in the park system in this article.

Clattering down the plank-lined chute, the 14 bison were leaving the big city for the high plains. Penned into individual crates that were then loaded into two steel express railroad cars, they rolled west late in 1913 on a 2,000-mile journey that would prove more astonishing than it might have seemed.