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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Ridden Direction
Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
  • < 2 days
  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
ContributeDetails
Colors indicate trail is missing specified detail.
  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      The McDonald-Dunn Forest is an 11250-acre research forest that lies north and of Corvallis. It is managed by the Research Forests group in the College of Forestry at nearby Oregon State University.

      Forest roads and authorized trails are open to foot, horse, and non-motorized bicycles for recreational use. There are no authorized trails in the Dunn forest. Trails are mostly singletrack. Some are gravel surface, some are natural. Some are subject to restrictions either based on season or on user types. There are no bicycle-only trails and all the trails are bidirectional.

      Recreation policy for the forests prohibits riding off of trails and states that it is unlawful to build or change or maintain trails without permission. Additionally, the trail etiquette requires mountain bikers to yield to all other user groups and asks that users stay on authorized trails only.
      Primary Trail Type: Cross-Country
      eBikes Allowed: No
      AKA: Mac Forest
      Road 800 Parking google parking directions
      Links
      Region Details
      • 28
      • 3
      • 18
      • 12
      • 5

      Region Status
      Open as of Aug 6, 2020
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      71
      Trails Mountain Bike
      66
      Trails Hike
      71
      Trails Trail Running
      71
      Trails Horse
      60
      Total Distance
      68 miles
      Total Descent
      16,746 ft
      Total Vertical
      1,837 ft
      Highest Trailhead
      2,165 ft
      Reports
      1,250
      Photos
      80
      Ridden Counter
      3,506

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      • 0 ft avg distance
      Yesterday
      • 7 rides
      • 18 miles avg distance
      Past Week
      • 50 rides
      • 15 miles avg distance

      Photos of McDonald Forest Mountain Bike

      trail: Upper Dan's
      3 |
      Jul 8, 2020 @ 11:41am
      Jul 8, 2020
      trail: Alpha
      33 |
      Jan 9, 2020 @ 6:52pm
      Jan 9, 2020
      21 |
      Jul 22, 2019 @ 4:42am
      Jul 22, 2019
      32 |
      Jul 22, 2019 @ 4:41am
      Jul 22, 2019

      Videos of McDonald Forest Mountain Bike

      Homestead Trail Ride
      trail: Homestead
      2:14 | 12 | Sep 12, 2019
      Dave's Trail - McDonald Forest
      trail: Dave's
      3:11 | 512 | Apr 2, 2018 , Corvallis
      The Tower Trail - McDonald Forest
      4:11 | 313 | Apr 2, 2018 , Corvallis
      McDonald Forest, Corvallis, Oregon
      trail: Extendo
      463 | Oct 8, 2017 , Corvallis

      Recent Trail Reports

      statustraildateconditionuserinfo
      Davies Road
      Aug 5, 2020 @ 3:10pm
      Aug 5, 2020
      Drytbmaddux Team Dirt
      Nettleton Road
      Aug 5, 2020 @ 3:09pm
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry. Soft in the zone of the recent harvest.
      Quercus Meadow
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry. Just fine.
      Lower Dan's / Jackson Creek Connector
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry. Just fine.
      Road 610
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry.
      Dave's
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry, cleared out last month, riding well.
      Vineyard Mountain
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry, cleared out last month, riding well.
      Road 650
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt
      Upper Dan's
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry. Ok.
      Middle Dan's
      Aug 5, 2020 @ 8:19am
      Aug 5, 2020
      Drytbmaddux Team Dirt Dry. Ok.

      Activity Feed

      usernameactiontypetitledate
      user #1730032Bdavis1742riddentrailCalloway Creek
      Aug 7, 2020 @ 2:27pm
      3 days
      user #1012780tbmadduxcheckintrailNettleton Road and 1 more
      Aug 5, 2020 @ 3:09pm
      Aug 5, 2020
      user #1012780tbmadduxaddreportQuercus Meadow and 10 more
      Aug 5, 2020 @ 3:08pm
      Aug 5, 2020
      user #1012780tbmadduxaddreportPowder House and 1 more
      Aug 4, 2020 @ 7:10am
      Aug 4, 2020
      user #2334586levifiveriddentrailExtendo and 1 more
      Aug 2, 2020 @ 9:17pm
      Aug 2, 2020

      Recent Comments

      usernametypetitlecommentdate
      user #1012780tbmadduxreportHigh HorseNot saying I disagree, but you might want to...
      May 12, 2020 @ 10:27am
      May 12, 2020
      user #1808058RaunchyHardtailtrailUprouteAmazing climb!
      Jul 14, 2019 @ 12:32am
      Jul 14, 2019
      user #1808058RaunchyHardtailtrailUpper HorseZOOOOOOOOOOOM!!
      Jul 14, 2019 @ 12:32am
      Jul 14, 2019
      user #1808058RaunchyHardtailtrailUprouteAmazing climb!
      Jul 14, 2019 @ 12:31am
      Jul 14, 2019
      user #1808058RaunchyHardtailtrailMiddle Dan'sZoom zoom
      Jul 14, 2019 @ 12:21am
      Jul 14, 2019

      Nearby Areas

      namedistance
      Chip Ross Park 42.5 km
      Alder Creek 2 43.3 km
      Bald Hill Natural Area 85.3 km
      Tum Tum 612 km
      Marys Peak 1 315.1 km

      Local Badges

      • By tbmaddux Team Dirt & contributors
      • Admins: Team Dirt, metaoes68
      • #6123 - 11,931 views
      • mcdonald forest activity log | embed map of McDonald Forest mountain bike trails | mcdonald forest mountain biking points of interest
      • subscribe print map 3d map donate to earn trail karma!

      Downloading of trail gps tracks in kml & gpx formats is enabled for McDonald Forest.
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