The term "watershed" is commonly used to refer to an area in which all surface waters flow to a common point. USGS identifies 92 watersheds in Oregon.

Articles & Stories

This multiimedia story focuses on the Whychus Creek restoration project within the Deschutes Basin...
"Money in a Streambank" tells the story of a regulation-driven ecosystem services project.
Every river has its hero. The Tualatin has the...
In the Upper Willamette Subbasin (4th field watershed) there are four 5th field watersheds:...
In the Molalla/Pudding Subbasin (4th field watershed) there are two 5th field watersheds: Molalla...

Maps and Tools

With hundreds of map layers available to draw from, you can use the Oregon Explorer Map Viewer... more

Data Collections

The Oregon Watershed Restoration Inventory (OWRI) Database and GIS data is available in the... more