Lesse lĕs´ə [key], river, c.50 mi (80 km) long, rising in the Ardennes, SE Belgium, and flowing northwest to join the Meuse River near Dinant. It passes in its middle course through underground limestone caves.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: French and Benelux Physical Geography