Watersheds

Watersheds

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

In December 2017, the Water Resources Commission adopted Oregon’s Integrated Water Resources...
In the Upper Willamette Subbasin (4th field watershed) there are four 5th field watersheds:...
The Lake Abert watershed is located in Lake County and contains Lake Abert and the Chewaucan River...
In the Middle Willamette Subbasin (4th field watershed) there are two 5th field watersheds:...
Oregon's Clackamas River flows approximately 85 miles from its headwaters on Ollalie Butte, just...

Maps and Tools

The Mid-Coast Water Report aggregates water data for a selected area of interest. The report... more

Data Collections

This Oregon Department of Environmental Quality (DEQ) data portal provides public read-only access... more