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.
Ribbon Fall
Ribbon Fall, located in Yosemite National Park in California, flows off a cliff on the west side of El Capitan and is the longest single-drop waterfall in North America. The fall is fed by melting winter snow; while therefore dry for much of the year, the fall is a spectacular 1,612 feet (491 m) in the spring. In exceptional years, an ice cone develops at its base during the winter months similar to that which usually forms beneath Upper Yosemite Fall. This deposit can reach a depth of 200 feet, versus 322 feet for the greatest depth of the ice cone beneath the Upper Fall and Lower Fall. It is the tallest, continuous waterfall in the United States.