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Off-road, often dirt

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Columbia Forest Road/Crown Zellerbach

  • Length:
    40 miles
  • Difficulty:
  • Nearby Cities:
    Scappoose, St. Helens, Warren
  • Region:
    Greater Portland

Trailhead Elevation: 47 ft

Elevation Chart

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In Oregon, a bicycle is legally considered a vehicle, and the same Oregon road laws apply. Please “be seen” and practice safe riding. Vehicle traffic, farm equipment and narrow shoulders exist on many Oregon roads, and you may find that construction projects, traffic or other events may cause road conditions or signage to differ from the map results, ride descriptions and directions. For travel options plus weather and road conditions, visit, call 511 (in Oregon only), 800.977.6368 or 503.588.2941. Routes listed on this website are for informational purposes and intended as a reference guide only.

Get directions to the trailhead on Google Maps

Moderate ride with some climbs.


  1. nice steady climb on gravel. not much to look at, though. i went all the way to vernonia, had lunch and then used the banks-vernonia trail to hillsboro, where i caught the MAX back to portland. 90 mile day.

Submitted by

Portland Velo

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