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 .
Fremont Falls
Fremont Falls is a waterfall located in Hanover, Indiana. At , it is the highest waterfall in Indiana. Fremont Falls is 18 feet higher than Williamsport Falls (located in Williamsport, Indiana), which is 90 feet tall, making Williamsport Falls second tallest in the state.