PBS - The National Parks: America's Best Idea (HD) (2009) Part 4 “Going Home” (1920–1933)

THE NATIONAL PARKS, a film by Ken Burns, is the story of an idea as uniquely American as the Declaration of Independence: that the most special places in the nation should be preserved for everyone. The series traces the birth of the national park idea in the mid-1800s and follows its evolution for nearly 150 years, chronicling the addition of new parks through the stories of the people who helped create them.

Part 4: “Going Home” (1920–1933)

Focuses on the time when America embraced the automobile, setting off an explosion in the number of park visits. Also, the Rockefellers quietly buy up land in the Teton Mountain Range.

The National Parks (Wikipedia).

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