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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

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Slough 101: Free, Hands-On Workshop to Explore Our Columbia Slough Watershed


Ever wonder about the slow-moving water running through Northeast and North Portland? The Slough 101 workshop will explore the unique character, challenges and opportunities of the Columbia Slough.  You’ll learn about water quality, wetland restoration, how the Slough has changed over time, and what various efforts by the Columbia Slough Watershed Council, Environmental Services, and many partners mean for wildlife, people and businesses.  

Mason Flats Wetland

Slough 101 is a free, hands-on workshop open to everyone interested in learning more about the Columbia Slough and its watershed.  The workshop is hosted at the beautiful offices of the McKinstry firm, which overlooks Environmental Services’ Mason Flats Wetland Enhancement Project

Slough 101 hands-on activities will allow attendees to:

  • Study Slough macroinvertebrates (water bugs) and learn about water quality
  • Simulate and predict aquifer conditions with an interactive groundwater model
  • Discover a beautiful hidden part of this unique waterway on a walking tour

Event: Slough 101 

Date: Saturday March 18   

Time: 9:00 a.m. - 12:45 p.m.

Location: McKinstry, 16790 NE Mason St., Portland, OR 97230

See Map

Pre-registration is required. Learn more and register here. Light refreshments will be provided. The event is suitable for adults and teens 14 & up. 

To learn about the Environmental Services work in the Columbia Slough, visit the program website here:


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