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| | Waterfall - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-27) |
 | | Waterfalls are a hindrance to river transportation, and so the Welland Canal was built in 1829 to allow ships to pass Niagara Falls in the Great Lakes. |
 | | Africa's Boyoma Falls, with the world's highest volume, 17,000 m³/s (600,000 ft³/s), on the Congo River; |
 | | Niagara Falls, most voluminous in North America, on the border between the USA and Canada; |
| www.marylandheights.us /project/wikipedia/index.php/Waterfall (545 words) |
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