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Surveyor’s Ridge/Dog River Loop

  • Length:
    24.7 miles
  • Difficulty:
  • Nearby Cities:
    Parkdale, Odell, Hood River
  • Region:
    Mt. Hood / The Gorge
  • Attributes:
    Single-Track, Steep, Technical

Trailhead Elevation: 1725 ft


Get directions to the trailhead on Google Maps

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.

Trailhead: From Hood River, head south on Hwy. 35 just over 15 miles. A half mile or so past the Hood River Valley Ranger Station, take a left on Smullin Road and look for a sign for the Oak Ridge Trailhead just before the road makes a 90 right turn. Park in the gravel lot and ride back out to Hwy. 35.

Highlights: Incredible rolling single-track and views. This is a tough ride where the long climb up the Dog River Trail is rewarded with the views and varied terrain along Surveyor’s Ridge. The descent down the Oak Ridge Trail will test your skills and brake pads. The route option up Bald Butte adds a steep jeep road climb, a fast descent and incredible views.

Note: Two loop options are possible on this ride: either descending the Oak Ridge Trail to Hwy. 35 or continuing on up Bald Butte and then down to FS 17 and Hwy. 35. Either way is long and strenuous, but the Bald Butte route adds another 8 miles and several hundred feet of steep climbing.

Seasons: Late spring through late fall

A detailed map of this trail and others nearby is available through Adventure Maps, an Oregon company, at local bike shops and outdoor retailers, as well as online at


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Submitted by

Scott Rapp

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