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Columbia Slough Watershed Council

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Maps

The Slough is an amazing combination of passages, lakes, and streams in the heart of the city. In addition, roads, businesses and homes are also located in the watershed of the Slough. This growing list of maps are a resource to help you explore the many treasures and resources of the watershed.

40-Mile Loop Trail Map

The 40-Mile Loop Trail is a century long effort to build a comprehensive trail system through and around Portland.

The planned loop trail has lengthened to more than 140 miles to include all of Multnomah County and to connect more than 30 parks. The trail connects parks and locations along the Slough and along the Columbia, Sandy, and Willamette Rivers and Johnson Creek in an almost continuous loop.

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40-Mile Loop Trail Map

Columbia Slough Watershed Overview

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Columbia Slough Watershed Overview

Columbia South Shore Well Field - WELLHEAD PROTECTION AREA

Groundwater Protection Area for Cities of Portland, Gresham and Fairview

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Columbia South Shore Well Field - WELLHEAD PROTECTION AREA

Explorando el Columbia Slough

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Explorando el Columbia Slough Explorando el Columbia Slough in Español

Nature in the City

Explore Nature in the City and find great places to hike, bike, bird watch, paddle and more in the Columbia Slough Watershed!

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Nature in the City

North East Portland Bicycle Map

Source: Portland Office of Transportation Website

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North East Portland Bicycle Map

North Portland Bicycle Map

Source: Portland Office of Transportation Website

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North Portland Bicycle Map

Regional Watersheds

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Regional Watersheds

Slough Locations Map

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Slough Locations Map

Slough Paddler’s Access Guide

Guide shows access launch sites along the Columbia Slough.  Provides general information about paddling in the area.

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Slough Paddler’s Access Guide

Whitaker Ponds Nature Park Map

The Council’s office is located at Whitaker Ponds, a park managed by Portland Parks & Recreation.

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Whitaker Ponds Nature Park Map