America's 58 National Parks

Caves: Wind Cave (1x6)

Data di messa in onda: Feb 20, 2013

Swaying prairie grasses, forested hillsides, and an array of wildlife such as bison, elk, and prairie dogs welcome visitors to one of our country's oldest national parks and one of its few remaining intact prairies. Secreted beneath is one of the world's longest caves, Wind Cave.