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 .
List of waterfalls of the Delaware Water Gap
Dingmans Falls is the second highest waterfall in the state of Pennsylvania with a plunge of 130 feet. It is located at the northern end of the park. There is a beautiful boardwalk that leads you to the base of the Waterfall where you can see the 80 foot cascading drop. This boardwalk is roughly a half a mile long and only takes you to the base of the fall. the broad walk include the sites of Dingmans Falls and Silverthread Falls. You can continue on up a series of stairs to the waterfall and see the entire 130 foot plunge from the birds eye view. The best time to go see this waterfall is about 24 hours after a good rain then it will be flowing fast a steady. This is most known waterfall of Delaware Water Gap National Recreation Park.