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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
Contribute Details
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
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Radar Time
Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
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      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
      Land Status: State Forest
      Land Manager: OSU Research Forests
      North Luckiamute Trailhead google parking directions
      Links
      Activities Click to view
      Region Details
      • 34
      • 2
      • 18
      • 13
      • 5

      Region Status
      Open as of Oct 12, 2021
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      77
      Trails Mountain Bike
      74
      Trails Hike
      81
      Trails Trail Running
      79
      Trails Horse
      68
      Total Distance
      72 miles
      Total Descent
      17,391 ft
      Total Vertical
      1,837 ft
      Highest Trailhead
      2,165 ft
      Reports
      2,214
      Photos
      128
      Ridden Counter
      6,543

      Photos of McDonald Forest Mountain Bike

      0 |
      Oct 3, 2021 @ 3:50pm
      Oct 3, 2021
      2 |
      Oct 3, 2021 @ 3:50pm
      Oct 3, 2021
      trail: Upper Dan's
      12 |
      Jul 10, 2021 @ 1:18pm
      Jul 10, 2021
      10 |
      Jul 10, 2021 @ 1:08pm
      Jul 10, 2021
      44 |
      Oct 10, 2020 @ 11:48am
      Oct 10, 2020
      trail: Ridge
      36 |
      Oct 10, 2020 @ 11:39am
      Oct 10, 2020
      16 |
      Aug 26, 2020 @ 12:35pm
      Aug 26, 2020
      40 |
      Aug 26, 2020 @ 12:34pm
      Aug 26, 2020

      Videos of McDonald Forest Mountain Bike

      Homestead Trail Ride
      trail: Homestead
      2:14 | 39 | Sep 12, 2019
      Playtime // Mountain Biking
      trail: Play Time
      8:06 | 48 | Jul 7, 2021 , Corvallis
      Bomb's Away // Mountain Biking
      4:41 | 21 | Jul 7, 2021 , Corvallis
      Bomb's Away // Mountain Biking
      4:41 | 31 | Jul 7, 2021 , Corvallis
      Hydra // Mountain Biking
      4:18 | 21 | Jul 7, 2021 , Corvallis
      Hydra // Mountain Biking
      4:18 | 17 | Jul 2, 2021 , Corvallis
      Bomb's Away // Mountain Biking
      4:41 | 43 | Jul 2, 2021 , Corvallis
      Playtime // Mountain Biking
      8:06 | 44 | Jun 14, 2021 , Corvallis

      Current Trail Warnings

      statustraildateconditionuserinfo
      Upper Bombs Away
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Idealtbmaddux Team Dirt 15in tree down about 24in off the ground...
      Lupine Letdown
      Oct 11, 2021 @ 8:22am
      Oct 11, 2021
      Variabledanielcoyle TEAM DIRT Volunteer crew worked on Switchback turns...

      Recent Trail Reports

      statustraildateconditionuserinfo
      Quercus Meadow
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Drytbmaddux Team Dirt Dried out between the rains. Riding well.
      Lower Dan's / Jackson Creek Connector
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Drytbmaddux Team Dirt A lady walking her horse – a horse...
      Lower Horse
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Drytbmaddux Team Dirt Dry. Riding pretty well.
      Upper Horse
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Idealtbmaddux Team Dirt Solid, grippy, not slippy, but more rain...
      Road 640
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Drytbmaddux Team Dirt Dry. Riding fine.
      Upper Bombs Away Alt Exit
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Idealtbmaddux Team Dirt Riding fine. Tree is actually down on the...
      Beautiful (Upper)
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Variabletbmaddux Team Dirt Water crossings a little soft, otherwise...
      Beautiful (Lower)
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Idealtbmaddux Team Dirt Best conditions on the mountain.
      Road 650
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Drytbmaddux Team Dirt Dry. Riding well.
      Upper Dan's
      Oct 12, 2021 @ 1:57pm
      Oct 12, 2021
      Idealtbmaddux Team Dirt Great. Just the right amount of moisture...

      Activity Feed

      usernameactiontypetitledate
      user #1405273djl10votetrailUpper Horse and 1 more
      Oct 13, 2021 @ 4:22pm
      Oct 13, 2021
      user #1012780tbmadduxaddreportQuercus Meadow and 12 more
      Oct 12, 2021 @ 5:16pm
      Oct 12, 2021
      user #1407449tim-berjackaddreportRoad 6020 and 3 more
      Oct 11, 2021 @ 8:04pm
      Oct 11, 2021
      user #782096danielcoyleaddreportLupine Letdown
      Oct 11, 2021 @ 8:22am
      Oct 11, 2021
      user #1012780tbmadduxcheckintrailVineyard Mountain and 1 more
      Oct 8, 2021 @ 6:53pm
      Oct 8, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #1012780tbmadduxtrailDave'sUnlinked the two photos that weren't of the...
      Sep 27, 2021 @ 10:21am
      Sep 27, 2021
      user #2773701Ryanhester1446trailDave'sIt's alright! Not what's in the photo lol....
      Sep 27, 2021 @ 9:57am
      Sep 27, 2021
      user #1012780tbmadduxtrailLupine LetdownI’m not in the loop on the planning for this...
      Sep 13, 2021 @ 9:38pm
      Sep 13, 2021
      user #1449607kleinty47trailLupine LetdownIs this going to include the original Tin Can...
      Sep 13, 2021 @ 2:36pm
      Sep 13, 2021
      user #1405273djl10trailUpper Bombs AwayThis trail is a good technical climb with some...
      Jul 30, 2021 @ 11:34am
      Jul 30, 2021

      Nearby Areas

      namedistance
      Chip Ross Park 42.5 km
      Alder Creek 3 43.3 km
      Bald Hill Natural Area 165.3 km
      Tum Tum 612 km
      Marys Peak 2 215.1 km

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike7467 miles16,158 ft29 miles1,837 ft
      #901#4601302,21426,988
      Hike8172 miles17,392 ft31 miles1,837 ft
      #658#3942,206210
      Trail Running7972 miles17,392 ft31 miles1,837 ft
      #661#3922,206254
      Horse6862 miles14,281 ft26 miles1,818 ft
      #44#401,104
      • By tbmaddux Team Dirt & contributors
      • Admins: Team Dirt, metaoes68
      • #6123 - 15,877 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!

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