Category: Basin

River Basins of Louisiana Overview

River basins of Louisiana are large drainage regions that collect precipitation and surface water and direct it toward a common river system. Each basin defines how water moves across the…


Louisiana Coastal Basins

The Louisiana Coastal Basins are large-scale geographic and hydrologic regions that define how water, sediment, and landscapes function across the state’s coastal zone. These basins organize rivers, wetlands, estuaries, and…


The Mississippi River Basin

Overview The Mississippi River Basin is the largest drainage basin in North America and one of the most extensive river systems in the world. It encompasses a vast network of…


The Ouachita River Basin

Overview The Ouachita River Basin is a major landscape drainage basin in northeastern Louisiana, forming part of a larger river system that extends into Arkansas. Within Louisiana, the basin includes…


The Pearl River Basin

Overview The Pearl River Basin is a major landscape drainage basin in eastern Louisiana, forming part of a larger river system shared with Mississippi. Within Louisiana, the basin includes the…


Sabine River Basin

Overview The Sabine River Basin is a major landscape drainage basin in western Louisiana, forming a natural boundary between Louisiana and Texas along much of its length. The basin encompasses…


Vermilion River Basin

Overview The Vermilion River Basin is a coastal landscape drainage basin in south-central Louisiana. It encompasses the low-lying prairies, wetlands, and waterways that drain southward through the Vermilion River into…


The Mermentau River Basin

Overview The Mermentau River Basin is a major landscape drainage basin in southwestern Louisiana, characterized by low-relief terrain, extensive wetlands, and slow-moving waterways. The basin drains southward through the Mermentau…


The Calcasieu River Basin

Overview The Calcasieu River Basin is a major landscape drainage basin in southwestern Louisiana. It includes the rivers, streams, wetlands, and low-lying terrain that drain southward toward Calcasieu Lake and…


The Red River Basin

Overview The Red River Basin is a major landscape drainage basin in northwestern Louisiana, forming part of a larger river system that spans the southern United States. Within Louisiana, the…