Bermejo (bərmāˈhō) [key], river, c.650 mi (1,050 km) long, rising in N central Argentina, flowing SE along the border with Bolivia and through N Argentina to Pilar, Paraguay. Through much of its course, it is the border between Argentina's Formosa and Chaco provinces. Most of the river is navigable by small craft.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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