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

"Money in a Streambank" tells the story of a regulation-driven ecosystem services project.
This multiimedia story focuses on the Whychus Creek restoration project within the Deschutes Basin...
The South Santiam subbasin drains approximately 1,040 square miles. With steep, mountainous...
Johnson Creek One day I was just walking the bank "...I don't even...
Oregon's Clackamas River flows approximately 85 miles from its headwaters on Ollalie Butte, just...

Maps and Tools

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

Data Collections

This interactive map allows you to view 9 ft resolution lidar data for portions of the state of... more