Slough School

Slough School is the Columbia Slough Watershed Council’s education program, serving students in kindergarten through college. Slough School provides hands-on opportunities for students to learn about the history and ecology of the watershed, what lives here, and how humans have changed this place. Want to do Slough School?


Program Structure

Slough School programming is free for students in grades K-college who live or attend schools within the Columbia Slough Watershed. We offer a wide variety of academic programs, including:

Classroom Lessons

  • Habitats

  • Watersheds

  • Riparian Zones

  • Water Chemistry

  • Erosion

  • Animal Adaptations

  • Aquatic Macroinvertebrates

  • Groundwater, Porosity & Permeability

  • Flooding & Vanport

Field Programs

Stewardship Service-Learning

  • Planting 

  • Live Staking

  • Invasive Plant Removal

  • Habitat Restoration

Geographic Area

What is a watershed?

A watershed is an area of land where all the water flows to a common point, such as a river, lake or slough.

What is a Slough? 

A slough is a Small, Slow, Skinny, Shallow body of water. The Columbia Slough is a series of lakes, wetlands, and slow-moving channels in the southern floodplain of the Columbia River. On this map, when rain hits the land anywhere in the green area, gravity takes it to the Columbia Slough. If your school is in the green area, you qualify for our programs!

Where is the Columbia Slough Watershed?

The Columbia Slough Watershed includes schools and communities in the St. John’s area, North Portland, and parts of Northeast Portland, Parkrose, North Gresham and Fairview. It reaches from Kelley Point Park in the west to Fairview Lake and the headwaters of Fairview Creek in the east; from Marine Drive in the north to the Alameda Ridge in the south. Slough School activities take place at field sites and classrooms across the watershed.

© 2020 by Columbia Slough Watershed Council