Skip to main content
U.S. flag

An official website of the United States government

IWAAs: Selected and future candidate IWS basins

By Water Resources Mission Area
Map of the national IWS basin candidates, with previously selected basins highlighted
Original Thumbnail Medium

Detailed Description

Map showing the Integrated Water Science reference basins. Basins selected for regional Integrated Water Availability Assessments (IWAAs) are highlighted in dark blue.

Sources/Usage

Public Domain.

Was this page helpful?