●established by the U.S. Congress and signed into law by President Ulysses S. Grant in 1872
●located primarily in Wyoming, although it extends into Montana and Idaho
●Yellowstone Lake is one of the largest high-altitude lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent.
●Half of the world’s geothermal features are in Yellowstone.
●In 1988, nearly 1/3 of the park was burnt by large forest fires.
3. Lower Yellowstone River Falls: The lower falls are 308 feet high, or almost twice as high as Niagara. The lower falls is the largest volume major waterfall in the Rocky Mountains of the United States. The volume of water flowing over the falls can vary from 63,500 gallons per second at peak runoff to 5,000 gallons per second in the fall.