Oswego Lake Watershed Council

The mission of the Oswego Lake Watershed Council is to foster stewardship, education, participation, and financial support for the purpose of the conservation, restoration, enhancement, and maintenance of watershed functions that achieve and sustain a healthy watershed.

RSVP for the 5th Annual Lake Oswego Tree Summit!

Leave the leaves this fall to provide habitat for beneficial insects and to nourish your soil this winter! 

Thank you to everyone who attended our 3rd Annual “Reveal Your Soiled Undies” Open House

Check back in for the results of this year’s challenge!



Oregon White Oak

It’s wildfire season!

It’s not too late to prepare your home for the worst-case scenario. Click here for some resources to help you get started on making your property wildfire resilient.




“We make instant decisions in our efforts to protect homes during a wildfire based on what looks to be defensible; take the Firewise Prevention steps today to make sure you are ready for tomorrow.”

Chief Don Johnson, Lake Oswego Fire Department

Check out the recording for This IS Kalapuyan Land, a virtual talk with Steph Littlebird, an indigenous writer and artist, and curator of a physical and online history, culture, and land acknowledgment exhibition of the Kalapuyan peoples. The recording includes Steph’s process of annotating panels from the museum’s prior exhibit on Kalapuyan peoples and curating contemporary Native artwork into the exhibition. 

Puncturevine flower and spiny fruit

Weed of the Month: Puncturevine

Puncturevine (Tribulus terrestris) is aptly named! This invasive weed has spiny seed heads that can easily puncture a bike tire, inflatable raft, animal paw, or footwear. Be on the lookout because it is beginning to make its way into Clackamas County from eastern and southern Oregon.



2023 Local Native Plant Sales

Whether you’re planting or planning, good things to know!

Click on the image above to find local sources of native plants, including local plant sales, as well as retail, wholesale and native plant seed suppliers.

For more resources including what plants to use for different conditions (sunny & dry, shady & wet, etc.), you may want to also look HERE.


Read Our Latest Newsletter


Contact Information

Council: info@oswegowatershed.org

Volunteer/Project issuesjack@oswegowatershed.org

Website Issues: webmaster@oswegowatershed.org

Phone: 503-479-5560

Mailing Address:
Oswego Lake Watershed Council
P.O. Box 1015
Lake Oswego, OR 97034

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