The national park forms one unit of the North Cascades National Park Service Complex. The two other units—Ross Lake National Recreation Area and Lake Chelan National Recreation Area—contain ...

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, exit into park. When leaving the south end of park ...

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.

Nowhere on Earth is as rich in quantity and quality of the prehistoric creatures' remains as the Badlands' arid Dinosaur Provincial Park, a UNESCO World Heritage site where digs are still under way.