Silver Cord Cascade
Silver Cord Cascade is a horsetail type waterfall on Surface Creek, a tributary of the Yellowstone River in Yellowstone National Park. Surface Creek flows out of Ribbon Lake off the South rim of the Grand Canyon of the Yellowstone and plunges to the Yellowstone River. It is considered the tallest waterfall in Yellowstone.
Darwin Falls
Darwin Falls is a waterfall located on the western edge of Death Valley National Park near the settlement of Panamint Springs, California. Although there exists a similarly named Darwin Falls Wilderness adjacent to the falls, the falls themselves are located in and administered by Death Valley National Park and the National Park Service. There are several falls, but they are mainly divided into the upper and lower with a small grotto in between. At a combined 80 feet (24 m), it is the highest waterfall in the park. The canyon is walled by dramatic plutonic rock.