Wonders of the National Parks: A Geology of North America

Yellowstone: Microcosm of the National Parks (1x1)

Air date: Oct 22, 2015

Start your tour of the geological wonders of North America's national parks with Yellowstone, where the breathtaking landscape inspired the idea of a national park. Focus on the processes that produce Yellowstone's many geothermal formations, particularly its geysers.