May 2026 | Columbia Slough Watershed Council News

Greetings!


We’re finally enjoying warmer days along the Columbia Slough, and it already feels like a season full of momentum. In April, with the support of dedicated volunteers and our sponsors at Leatherman, we removed an incredible 6,750 pounds of trash from the watershed. We also welcomed 188 students outdoors through our field trip programs and are preparing for a busy month ahead in Slough School. Our annual Canoe Weeks series is a favorite for 4th graders in the watershed, before they leave for summer break. As the days grow warmer, you can expect even more opportunities to get outside and get involved.


This month, we’re excited to offer a wide range of ways to connect — join us for a community bike ride with the Portland Water Bureau, explore the urban canopy on a tree walk with Urban Forestry and 350PDX, and discover even more events below.


Looking for other ways to get involved? Consider becoming a monthly donor! Throughout May, we’re offering special incentives for new monthly supporters, including a bike, CBD gummies, and more. You can also make a hands-on impact by joining our Paddle Team Volunteer program, with our annual training coming up on May 3. Keep reading to learn more, and find the opportunity that’s right for you!

 

Sustain the Slough This Spring!

Columbia Slough Watershed Council is seeking 25 new monthly donors to sustain our work!


Why now? We are celebrating the founding of the Council, formed by concerned residents of the Slough over 20 years ago to protect this diverse and unique watershed.


Can you help us keep the Council's legacy alive by making a monthly contribution?

What's in it for you? Sign up for a monthly donor tier by June 15th for the following prizes:

  • TURTLE ($5/month): Receive your choice of Wyld CBD gummies or a 6-pack of Portland Cider (must be 21+)
  • BEAVER ($10/month): Be entered to win a Kayak or Canoe package worth $500+, plus Turtle tier benefit.
  • HERON ($20/month): Receive two entries to win a Propain Gravel Bike, valued at $3,500, plus the benefits of Turtle and Beaver tiers.

Can't commit to a monthly donation? You can still make a one-time donation!


Every $15 you give to the Council enters you to win a customized Terrel CF Gravel Bike from Propain, valued at $3,500. The raffle opens 5/1/26 and closes 6/15/26 at midnight and the winner will be pulled that week.

 

Sparrowhawk Plant Pickup

This is a friendly reminder if you pre-ordered from Sparrowhawk Native Plants for pickup at Level Beer on NE 148th Ave.


Please refer to the pickup date and time you selected at checkout and arrive during that time frame. The Council and The Blueprint Foundation will have volunteers on site to help you gather your plants. We look forward to seeing you there!

 
 

Cycle the Well Field!

Join CSWC and the Portland Water Bureau for a free 17-mile bike ride through Portland's Columbia South Shore Well Field! Experts from the Portland Water Bureau and the Council will lead this moderately paced and scenic trip. Our group will make frequent stops to break up the ride and offer opportunities to discuss how groundwater provides flexibility and reliability to the City’s water supply, and how we can all protect this important resource. Minors must be 12 years or older and accompanied by an adult. Check-in starts at 8:15, event begins at 8:45.


WHEN: May 16 from 8:45 AM - 1:00 PM

WHERE: Aloft, 9920 NE Cascades Parkway

 

Tree Equity Walk: Eliot to Irvington

Join CSWC, City of Portland Urban Forestry, and 350 PDX for a free educational urban tree walk! As we move from neighborhood to neighborhood, the trees here tell stories about the past that can be seen and felt today, inviting us to examine our urban canopy and racism in Portland. Local tree experts Marissa Richerson (Urban Forestry) and Ryan Gilpin (Nidus Consulting) will share not just information about the trees they see, but also the stories those trees hold. 

Join us and share your stories at this dynamic, outdoor conversation bouncing from tree to tree, story to story, street to street. This event is free and open to all ages.

WHEN: Tuesday, May 26, 6:00 PM - 8:00 PM

WHERE: Matt Dishman Community Center

77 Northeast Knott Street

 

See you at Slough Celebration!

Columbia Slough Watershed Council is celebrating 24 years as a 501(c)3 nonprofit! Join us for a family-friendly afternoon of celebration, community and adventure that will include paddling, birding, stewardship, outdoor education, free food, free drinks, music, a raffle, and more!


WHEN: Saturday, June 13, 2:00 - 6:00 PM

WHERE: The Flood Safety District, 1880 NE Elrod Drive, Portland OR 97211

THANK YOU TO OUR SPONSORS!

Raffle Sponsors:

Garnish Apparel, Tin Shed Garden Cafe, McMenamins, OMSI, One Green World, Party Shirt International, Movement Climbing Gym, The People's Courts, Milagro Theater, Stomping Grounds Coffee, Fire on the Mountain, and Bikes for Humanity.

 

Community Partners Spotlight

The Flood Safety District is hiring a Planning Assistant!

This role will support their strategic and infrastructure planning initiatives and will be involved in providing general planning support across the organization, including plan development and research. You can learn more and apply on the Government Jobs site linked below.

 

Join CSWC for events to help improve the watershed's important natural resources, learn about native plants, and connect with the community!


You can also find out more information about CSWC and our events on our website.


In-Person Paddle Team Training

Sunday, May 3, 9:00 AM - 3:00 PM

This training will be held in person and is required for all new Paddle Team volunteers and returning volunteers from seasons 2024 and older. This is an optional training for anyone who volunteered in the 2025 season. To attend this training, you must have attended the online webinar


Slough Science: Spring Wildflowers of the Columbia Slough

Tuesday, May 5, 6:00 PM - 7:30 PM

Join CSWC and Emily Scherer, Lead Field Technician of Flora Protocols, for a Slough Science night at Von Ebert Brewing Glendoveer. Come learn about the wonderful and unique plants that call the Columbia Slough Watershed home. We’ll talk about the fascinating ecological interactions of our local flora, go over plant identification skills, and discuss how to plan your outings with wildflowers in mind.


Cycle the Well Field

Saturday, May 16, 8:45 AM - 1:00 PM

Join CSWC and the Portland Water Bureau for a free 17-mile bike ride through Portland's Columbia South Shore Well Field! Experts from the Portland Water Bureau and the Columbia Slough Watershed Council will lead this moderately paced, scenic trip, offering opportunities for conversation about how groundwater provides flexibility and reliability to the City's water supply.


Spring Birding Paddle

Sunday, May 17, 10:00 AM - 12:00 PM

Join Ryan Gilpin of Nidus Consulting and CSWC for a spring paddle focused on birding! Participants are welcome to bring their own boat, or reserve a seat in one of ours for this paddling event on the Columbia Slough. This event is free and open to all ages, minors must be accompanied by an adult.



Feminine Identifying & Non-binary Sunset Forest Bathing + Yoga

Friday, May 22, 6:40 PM - 9:00 PM

Join CSWC and facilitator Julie Jansen of Earthbody Presence for a unique experience combining forest bathing and yoga! This event is free and open to those 14 and older. All minors must be accompanied by an adult. This event is for everyone who identifies as female, femme, and/or non-binary!


Paddle Team Buddy Shift

Saturday, May 23, 10:00 AM - 1:30 PM

Interested in becoming a Paddle Team Volunteer? Join us for a Buddy Shift!


Tree Equity Walk: Eliot to Irvington

Tuesday, May 26, 6:00 PM - 8:00 PM

Join CSWC, City of Portland Urban Forestry, and 350 PDX for a free educational urban tree walk! As we move from neighborhood to neighborhood, the trees here tell stories of the past that are still evident today, inviting us to examine our urban canopy and racism in Portland. Local tree experts Marissa Richerson (Urban Forestry) and Ryan Gilpin (Nidus Consulting) will share not just information about the trees they see, but about the stories that those trees hold within them. 


Paddle Team Buddy Shift

Sunday, May 31, 4:00 PM - 8:00 PM

Interested in becoming a Paddle Team Volunteer? Join us for a Buddy Shift! This opportunity is reserved for Ukrainian and/or Russian speakers. Other Buddy Shift opportunities are available throughout the month and into July.


Slavic Community Paddle

Sunday, May 31, 5:00 PM - 7:00 PM

Join the Slavic Community Center and CSWC for a paddle in NE Portland! This is an all ages event, minors must be accompanied by an adult. All paddling gear will be provided! This event is exclusively for Slavic community members. Ukrainian and Russian interpretation will be available throughout the event.


Slough Celebration

Saturday, June 13, 2:00 PM - 6:00 PM

CSWC is celebrating 24 years as a 501(c)3 nonprofit! Join us for a family-friendly afternoon of celebration, community, and adventure that will include paddling, birding, stewardship, outdoor education, free food, free drinks, music, a raffle, and more!