The Third Avenue entrance to the King County Courthouse is temporarily closed. Please use the Fourth Avenue entrance.

  
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The King County Streams Monitoring Program provides two methods to find and display information for each stream. You can browse this map and click on the dot to access our database. (A black dot indicates there is historical data but the site is not currently monitored.) Or you can find your stream here.

Map Legend:  Map icon for active siteactive site   Map icon for inactive siteinactive site