1872 - Yellowstone becomes world's FIRST National Park.
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-Yellowstone Lake is one of the largest high-altitude lakes in North America
- Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered an active volcano. It has erupted with tremendous force several times in the last two million years.
-Half of the world's geothermal features are in Yellowstone, fueled by this ongoing volcanism.
-Over 1,700 species of trees and other vascular plants are native to the park
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