Yser (izĕrˈ) [key], river, c.50 mi (80 km) long, rising in N France and flowing generally NE through NW Belgium and into the North Sea at Nieuwpoort. It connects a network of canals. The area was the scene of heavy fighting in World War I.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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