Lempa lām´pä [key], river, c.200 mi (320 km) long, rising in Guatemala and flowing S through Honduras into El Salvador, then generally S to the Pacific Ocean. An important stream, it waters the fertile Lempa valley, largely within El Salvador, which supports a dense agricultural population.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2023, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: Latin American and Caribbean Physical Geography