With the passage of time a particular waterfall must either migrate upstream, as in the case of a cap-rock falls, or serve as the locus for general downcutting along the reach of river containing the falls. In either case, the process depends on the height of the falls, the volume of flow, and the nature and arrangement of the rocks involved. Any discussion of waterfall development requires knowledge of these three factors and, more importantly, knowledge of the former locations and configurations of any particular waterfall under consideration. If the changes of location through time are lacking, ... (100 of 35,658 words)Development of waterfalls
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Feluccas on the Nile River near Luxor in Upper Egypt.
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Huang He (Yellow River), northern China.
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Kananaskis River, Alberta, Canada.
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The Rio Grande flowing through the desert at the foot of the Chisos Mountains in Big Bend National Park, Texas.
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Aerial view of the Amazon River in Brazil.
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The Three Gorges Dam spanning the Yangtze River (Chang Jiang) near Yichang, Hubei province, China.
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Central Budapest, looking north along the Danube River, with the Parliament Building on the east bank.
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Commodity-carrying laker in the St. Lawrence Seaway at Montreal, Canada.
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Barge on the Rhine River, with vineyards in the background, at the town of Kaub, Germany.
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Hydroelectric power station on the Volkhov River at Volkhov, Russia.
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Faroese fish farm.
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A boy collecting plastic in a polluted river in Jakarta, Indonesia, 2007.
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A river in Sichuan province, China, polluted by a paper mill.
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The 6 October Bridge over the Nile River, Cairo, Egypt, with the central business district in the background.
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A barge traveling down the Mississippi River in Louisiana.
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Sagaing, Myanmar, on the Irrawaddy River.
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Bridge over the Yukon River at Carmacks, Yukon, Canada.
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Angel Falls, Canaima National Park, Venezuela.
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Devil’s Cataract, Victoria Falls, Zimbabwe.
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Niagara Falls.
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Paulo Afonso Falls on the São Francisco River, Alagoas, Brazil.
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The former Guaíra Falls on the Upper Paraná River
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Iguaçu Falls on the Iguaçu River at the Argentina-Brazil border.
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Jog Falls, western Karnataka, India
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Yosemite Falls from Sentinel Meadow, Yosemite National Park, California.
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Horseshoe Falls, Niagara Falls, Ontario, Canada.
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American Falls, Niagara Falls State Park, Niagara Falls, New York.
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Pakistanis taking shelter on higher ground after an Indus River flood, near Thatta, Sindh province, Pakistan, August 2010.
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The Colorado River in Marble Canyon at the northeastern end of Grand Canyon National Park, northwestern Arizona.
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Estuary of the River Erme, Cornwall, Eng.
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Eastern floodplains of the Caprivi Strip, Namibia.
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Formation of a waterfall in Iceland.