Alan Drury's photos with the keyword: Waterfalls

Yellowstone Falls consist of two major waterfalls on the Yellowstone River, within Yellowstone National Park, Wyoming, United States. As the Yellowstone river flows north from Yellowstone Lake, it leaves the Hayden Valley and plunges first over Upper Yellowstone Falls and then a quarter mile (400 m) downstream over Lower Yellowstone Falls, at which point it then enters the Grand Canyon of the Yellowstone, which is up to 1,000 feet (304 m) deep. Cascading from the 590,000 year old Canyon Rhyolite lava flow, Lower Yellowstone Falls is the largest volume waterfall in the Rocky Mountains of the United States.These falls (44°43′05″N 110°29′46″W) are 308 feet (94 m) high, or nearly twice as high as Niagara Falls. The volume of water flowing over Lower Yellowstone Falls can vary from 680 cu ft/s (19 m3/s) in the autumn, to 8,400 cu ft/s (240 m3/s) at peak runoff in late springtime.[citation needed] The flow rate of Lower Yellowstone Falls is much less than that of Niagara Falls, as the Yellowstone River is only 70 feet (21 m) at the point at which it goes over the lower falls, whereas the Niagara River is 2,600 feet (790 m) in width as it approaches the crest line of Horseshoe Falls.

Kisdon Force is a series of waterfalls on the River Swale in Swaledale, England. The falls are situated at grid reference NY898010 within the Yorkshire Dales National Park in the county of North Yorkshire, 500 metres downstream from the small hamlet of Keld. Kisdon Force is one of several waterfalls on the Swale in the Keld area, the others being East Gill Force, Catrake Force and Wain Wath Force. All occur where the river cuts a gorge through the Carboniferous limestone between the hills of Kisdon and Rogan's Seat. The falls in this area are termed forces after the Norse word fors or foss, which means "waterfall". Both upper and lower Kisdon Force can be negotiated by canoeists, although a high degree of skill and experience is needed. The upper falls are rated Grade IV, while the lower falls are rated more difficult at Grade V. The falls drop 10 metres (33 ft) over two cascades and are surrounded by Kisdon Force Woods, a Site of Special Scientific Interest covering an area of 38 hectares, which consists of mixed broad-leaved woodland with ash, wych elm and rowan trees dominating. In the springtime Primula vulgaris grows profusely in the area. The falls can be easily visited by a riverside path from Keld; however, care should be taken, as the stones around the falls are often wet and slippery. Visitor numbers to the falls are swelled by walkers along the Pennine Way, a long-distance footpath that passes the falls on its way north.