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Columbia Slough Watershed Council



The Columbia Slough Watershed Council’s Stewardship program is dedicated to improving watershed health by combining local residents, natural areas, and restoration activities in locations throughout the watershed.  Volunteer activities include native plantings, weed pulls, and litter cleanups in and along waterways.

Stewardship Saturday

Stewardship Saturdays are morning workparties in local parks and natural spaces. Activities range from invasive species removal to litter pick up, native plant planting, mulching, trail maintenance and more. We provide tools and training - no experience is necessary! Learn more about how you can get involved below.

    April 29 - Planting by Boat

All events take place from 9:00am - 12:00pm.
Click the event for more information.
Want to sign up?Register here.


Join us for a morning work party and improve watershed health! Caring for our native plant community takes team work and the native bugs, birds, fish, mammals and other Slough fauna will thank you for it.
Connect with friends and neighbors, fulfill service hours for a school project and get to know more about how your actions affect the health of our local waterways. Click the events above to sign up!

Become a volunteer partner

Groups and individuals are welcome for all Stewardship Saturday events. Businesses and community groups are encouraged to register as a Volunteer Partner for any of the events above. Get out and start serving your community today at a park near you! Contact Kelsie Greer at or call (503) 281-1132. We also host custom Stewardship Saturday events at Whitaker Ponds Nature Park pending staff and project availability - contact us for details!

Donate to our volunteers

Are you a local restaurant or café? Donate coffee, tea, pastry or other snacks to feed our volunteer crews!  The Council is an IRS recognized non-profit organization. Contact Kelsie Greer for more information or call (503) 281-1132.

With questions about these and other volunteer opportunities, contact Kelsie Greer at or call (503) 281-1132.