The National Parks: America's Best Idea: The Morning of Creation
Saturday, April 30 at 9:00 p.m.
The "Last Frontier" becomes a testing ground for the future.
As the series concludes, a stubborn iconoclast fights a lonely battle on behalf of a species nearly everyone hates and in unprecedented numbers, American families create unforgettable memories, passing on a love of the parks to the next generation.
Pictured above: Grizzly bear fishing for salmon, Brooks Falls, Katmai National Park and Preserve, Alaska.
At right: After World War II, park attendance skyrocketed as millions of families began pouring into the parks on vacations that became an American rite of passage. Pictured: Tourist family in Yellowstone National Park, 1958