Yellowstone National Park
Yellowstone National Park has one of the world's largest petrified forests, trees which were long ago buried by ash and soil and transformed from wood to mineral materials. This ash and other volcanic debris are believed to have come from the park area itself as the central part of Yellowstone is the massive caldera of a supervolcano. The park contains 290 waterfalls of at least , the highest being the Lower Falls of the Yellowstone River at .
Jewel Geyser
Jewel Geyser is a fountain geyser in the Upper Geyser Basin of Yellowstone National Park in the United States. It is in the Biscuit Basin complex that includes Black Diamond Pool, Black Opal Spring, Wall Pool, Sapphire Pool, Shell Spring, Silver Globe Spring, Avoca Spring, West Geyser, the Mustard Springs, Coral Geyser, and Black Pearl Geyser.