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Print Friendly MapThe Columbia Slough Trail follows its namesake waterway on the northern end of Portland. Although there are currently gaps in the trail, it will one day follow the entire length of the narrow 19-mile stream. When completed, the trail will be an important component of the 40-Mile Loop, a greenway that will encircle the city and extend to other parts of Multnomah County.
Although there are some industrial views along the way, the trail connects city dwellers to many natural areas. The pathway begins in Kelley Point Park, at the confluence of the Willamette and Columbia Rivers. Here, you can find a nice shady spot to picnic or watch ships traveling through the port. Further east is Delta Park, which abounds with recreational amenities, including football, soccer, and softball fields, a volleyball court, a playground, picnic tables and an off-leash area for dogs.
To continue your adventure, you can hop on the trail's northern neighbor, the Marine Drive Trail, which follows the Columbia River, or connect to the Peninsula Crossing Trail, which heads southwest.
Parking can be found at Kelley Point Park (N. Marine Drive and Lombard Street) and Delta Park (10737 N. Union Court).
The first part - Vancouver Avenue to Interstate Avenue was fine, new macadam. The part from Interstate Avenue to Portland Road was needs repaving, with gravel between patches of macadam in bad shape. Given that your on top of a narrow lever, it was bit dicey.
Best access point is parking at Columbia Boulevard Water Treatment plaint and following the path and bridge across the slough. A little industrial in parts, but beautiful views of the slough and lots of birds (great blue herons, great egrets, hawks, sandpipers, etc.) and other animals (river otters, nutria, etc.). You'll have the trail mostly to yourself. I'd recommend going during the week to avoid going on a day where the raceway is up and running. Great hidden gem.
Industrial for huge parts. Not the prettiest bike ride.
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