National Parks Conservation Association
Yellowstone: The World's First National Park
A River Through Golden RocksThe park gets its name from the Yellowstone River, which in turn was named for the bright mustard-colored canyon walls it flows through.
Lush, Steaming, VibrantFrom the lush valleys to the rocky canyons to the steaming geyser basins to the peaceful lakes, Yellowstone's terrain is varied and vibrant.
More Than Old FaithfulYellowstone is home to more than half the world's geysers and an exceptional concentration of geothermal energy.
The 'Serengeti of North America'Yellowstone has the largest concentration of mammals in the contiguous United States including a high number of large predators.
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