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.
Livingstone Falls
Livingstone Falls consist of a series of rapids dropping in . They start downstream Malebo Pool and end in Matadi in Bas-Congo. The Congo River has the second largest flow rate in the world after the Amazon, which has no falls or rapids (except near its sources). The lowest rapids of Livingstone Falls, therefore, are the world's largest waterfall in terms of flow rate — provided one accepts these rapids as being a waterfall. An interesting aspect of the long Livingstone Falls is the width of the channel. The channel is very narrow: in several stretches the channel width is less than 300 metres and for the majority of the length the channel is less than 800 metres wide. This is an extraordinarily narrow channel since the river flow rate typically exceeds .