This page has features that use javascript. Some elements may not work properly. NAS - Species Search By HUC8
Link to USGS home page.
NAS - Nonindigenous Aquatic Species



Query by Drainage
(8-digit HUC)

Select the state that contains the drainage you are interested in.
Image of State

Image Map courtesy of EPA's Surf Your Watershead program




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U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Pam Fuller - NAS Program
 URL: <http://nas.er.usgs.gov/queries/huc8.asp>
This File (/queries/huc8.asp) Last Modified On: 8/7/2008 11:10:17 AM

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