To prevent further destruction of its unique bounty, the area was designated a national monument in 1906 and a national park more than a half century later. If you are traveling west on I-40 ...

One of the world’s oldest national parks, Mount Rainier became ... had already ravaged much of the American West. (Here’s why wild salmon remains king in the Pacific Northwest.) ...

Multiday canoeing, kayaking, and rafting trips on the South Nahanni, and to a lesser extent on the Flat and Little Nahanni Rivers, are now the main attractions in Nahanni National Park Reserve.

Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

Robert F. Kennedy, Jr., calls the Great Bear Rainforest "the planet's last large expanse of coastal temperate rain forest." Stretching for more than 250 miles along the coast of British Columbia ...