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Diamond Mill OHV Area is a large riding area in the Tillamook State Forest that offers a variety of terrain for different skill levels. The system includes a mix of wider logging roads in the lower elevations and more difficult, narrow trails at higher elevations. While the area contains some single-track trails that are popular with motorcycles, much of the riding is on shared-use paths. The terrain is a challenging mix of hard-packed ground, loose dirt, and rocks, with many steep hills, making it a destination for skilled intermediate to expert riders.
The area is open to dirt bikes, ATVs, and UTVs, but riders must pay close attention to trail designations for permitted vehicle types. A central staging area features an information kiosk with maps, and the adjacent campground offers restrooms and sites for overnight stays. An Oregon OHV permit is required.Dirt Bike Trail System
Diamond Mill OHV Area
AKA: Jordan Cr. & Diamond Mill, Jordan Creek, Jordan Creek OHV Area, Tillamook State Forest, North Fork Wilson River, Jones Creek, Runyon Creek, Cobmaster, Deerfence, Elk Wallow Rd, Smith Homestead Day Use Area
Tillamook, OR
Off-Road Trails
Trail System Statistics
Braaply Rating
Awesome
Approximate Size
19,840 acres (31 sq mi)
Miles of Trail
100 miles
Elevation Range
1500 to 2700 ft.
Operating Season
Year-Round except during fire season (riding is discouraged during rainy season - call (503) 815-7024 for trail conditions).
About Diamond Mill OHV Area
Diamond Mill OHV Area is a large riding area in the Tillamook State Forest that offers a variety of terrain for different skill levels. The system includes a mix of wider logging roads in the lower elevations and more difficult, narrow trails at higher elevations. While the area contains some single-track trails that are popular with motorcycles, much of the riding is on shared-use paths. The terrain is a challenging mix of hard-packed ground, loose dirt, and rocks, with many steep hills, making it a destination for skilled intermediate to expert riders. The area is open to dirt bikes,...
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Terrain Details
Surface Types
Loose Dirt
Few
Hard Pack
Few
Sand
None
Rocks
Few
Natural Features
Trees
Lots
Steep Hills
Many
Water Crossings
None
Trail Features
Small Jumps
Few
Large Jumps
Few
Berms
Few
Pits
Few
Trail Types
Singletrack
Few
Roads
Few
Traffic & Safety
Rider Traffic
Few
Hazards
Few
Difficulty Levels
Novice Terrain
Little
Amateur Terrain
Few
Expert Terrain
Mostly
Trail Maintenance
Trails are not marked or maintained.
Terrain Hazards
Some of the trails here are steep and narrow, with some active logging in the area.
Getting Here & Info
Parking
No parking fees reported.
Camping
Camping is allowed in developed sites only.
Permit Required
Yes
Permit Info
Oregon ATV Permit stickers required
Official Information
https://www.oregon.gov/odf/recreation/pages/motorizedtrails.aspxOperating Season
Year-Round except during fire season (riding is discouraged during rainy season - call (503) 815-7024 for trail conditions).
Trailhead Coordinates
45.6402678, -123.5285863
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