Skip to main content

Monitoring location Pierce Island Slough Entrance, Columbia River, WA - USGS-453711122003900

Important for you to know:

  • USGS will be performing maintenance on WDFN webpages beginning Tuesday, May 12. If you cannot access the page you are intending or are unexpectedly redirected to a different page, please reach out to wdfn@usgs.gov for assistance.