Full Documentary Films - Yellowstone National Park - National Geographic Documentary

Yellowstone National Park, established in 1872 & located primarily in Wyoming, was America's first national park. To this day, Yellowstone remains one of the country's most popular national parks with almost four million annual visitors. Yellowstone spans almost 3,500 miles, and extends into parts of Montana and Idaho, making it the largest National Park in the US.

Yellowstone National Park sits on top of a dormant volcano and is home to more geysers and hot springs than any other place on earth. Approximately 50 percent of the world’s hydrothermal features are at Yellowstone National Park. The most famous of all the geysers is Old Faithful, one of the most popular and recognized natural wonders in the United States.