What are hot springs?
Underground water is heated and percolates to the earth’s surface. They are used for hot baths and geothermal energy.
What was the first national park in the world?
Lower Yellowstone Falls
Yellowstone National Park in Wyoming, Idaho and Montana was established March 1, 1872. The park gets its name for the yellow rock of the Grand Canyon of the Yellowstone. Yellowstone is known for its varied geologic and geographic features, wildlife and has the largest concentration of geothermal features.