12 - Canada - Largest ratio of drainage catchment area to size

Winnipeg

21 - Canada - The deepest areas are the site of a large meteorite impact, from almost 100 million years ago.

Reindeer

28 - Zambia, Democratic Republic of the Congo - The second largest lake in the Congo's drainage basin, Tanganyika being the largest.

Mweru

41 - Kazakhstan - Largest remnant of the former, Aral Sea. Once the world's fourth largest lake.

North Aral Sea

46 - Zambia - One of the world's great wetland systems. The area has swamps and floodplain. Variable size on this shallow lake. Crucial importance for animals and birds, of a far larger area.

Bangweulu

13 - Canada, United States - The lowest lying of the Great Lakes.

Ontario

18 - Peru, Bolivia - Highest navigable lake in the world. Greatest mountain lake. Largest lake in South America.

Titicaca

10 - Canada - Deepest lake in North America

Great Slave Lake

44 - Canada - In geological terms, a "young" lake (approx. 4,500 years old). Second largest on Baffin Island. Third largest in Nunavut.

Amadjuak

37 - Canada - Frozen surface 10 months each year. No permanent settlements on its shores.

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