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Trail Conditions
  • Unknown
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  • Snow Packed
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  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
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  • Ideal
  • Dry
  • Very Dry
Trail Flow (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%
  • bi-directional trail
  • no data
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
  • < 2 days
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Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
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  • 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.
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  • popular
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Radar Time
x 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
  • Snowmobile
Winter Trails
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x Missing Trails
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Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
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      Belmont is a small, mostly residential city in San Mateo county. Its notability for mountain biking lies in a little gem of a park called Waterdog Lake Park (often also referring to the adjoining Hidden Valley Open Space Preserve). Many of the trails in this park have been built and maintained by mountain bikers, lending to a surprisingly dense and interesting trail network for such a small area.
      featured
      Activities Click to view
      Region Details
      • 9
      • 10
      • 15
      • 3
      • 4
      • 1

      Region Status
      Caution as of Sep 19, 2023
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      49
      Trails Mountain Bike
      47
      Trails E-Bike
      4
      Trails Horse
      2
      Trails Hike
      40
      Trails Trail Running
      40
      Trails Observed Trials
      2
      Total Distance
      36 miles
      Total Descent
      6,495 ft
      Total Vertical
      1,163 ft
      Highest Trailhead
      1,388 ft
      Reports
      2,070
      Photos
      593
      Ridden Counter
      16,608
      Sub Regions

      Photos of Belmont Mountain Bike

      7 |
      Aug 29, 2023 @ 1:21pm
      Aug 29, 2023
      6 |
      Jun 29, 2023 @ 1:33pm
      Jun 29, 2023
      9 |
      Jun 29, 2023 @ 1:33pm
      Jun 29, 2023
      6 |
      Mar 8, 2023 @ 11:59am
      Mar 8, 2023
      348 |
      Dec 27, 2017 @ 2:21pm
      Dec 27, 2017
      708 |
      Feb 14, 2016 @ 8:02pm
      Feb 14, 2016
      trail: DMC
      1,088 |
      Dec 27, 2010 @ 2:06am
      Dec 27, 2010
      | 5 comments
      trail: DMC
      641 |
      Oct 25, 2009 @ 9:36am
      Oct 25, 2009
      | 4 comments

      Videos of Belmont Mountain Bike

      Sunday Save
      777 | Jan 2, 2022
      Sunday Save
      | Jan 2, 2022
      Sunday Save
      | Jan 2, 2022
      Sunday Save
      | Nov 28, 2021
      Step up at Carlmont
      | Oct 17, 2021
      Warp Speed at Carlmont
      194 | Jun 28, 2021
      GG send
      trail: Gravity
      0:17 | 231 | Dec 22, 2019
      Respect the utters
      1:12 | 935 | Jun 8, 2019

      Current Trail Warnings

      statustraildateconditionuserinfo
      Sawyer Camp Trail
      Sep 19, 2023 @ 8:55am
      Sep 19, 2023
      Dryb--rock Mostly closed, in the middle, due to...
      Chaparral Trail (Closed)
      Sep 4, 2023 @ 1:48am
      Sep 4, 2023
      DryBaunty
      San Juan Canyon Fire Road
      Aug 29, 2023 @ 8:48am
      Aug 29, 2023
      Very Dryshill WDOSS Closed in a couple sections, near Saison.

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      DgutzaddreportRambler Trail
      Sep 26, 2023 @ 5:05pm
      1 hours
      DgutzaddreportBox Canyon Fire Road and 1 more
      Sep 26, 2023 @ 5:05pm
      1 hours
      scubatuba99wishlistrouteWaterdog Complete Loop
      Sep 25, 2023 @ 3:47pm
      1 day
      b--rockdifficultyvotetrailCarlmont Main Trail
      Sep 25, 2023 @ 11:57am
      1 day
      CiniziawishlistrouteThe Waterdog Tour
      Sep 23, 2023 @ 7:53pm
      3 days

      Recent Comments

      usernametypetitlecommentdate
      shilltrailChaparral Trail (Closed)The trail work was unauthorized, and the trail...
      Aug 21, 2023 @ 7:13pm
      Aug 21, 2023
      jrv373trailChaparral Trail (Closed)Trail is rebuilt and open now
      Jun 25, 2023 @ 2:23pm
      Jun 25, 2023
      Old-DirtytrailRacoon Run TrailOvergrown vegetation
      Jun 14, 2023 @ 9:49pm
      Jun 14, 2023
      Old-DirtyreportRalston Bicycle Trail EastClosed from March 1 to July 31, 2023
      Mar 4, 2023 @ 9:54am
      Mar 4, 2023
      rlabatttrailSawyer Camp TrailStill closed due to Jan/Feb 2023 storm damage
      Mar 4, 2023 @ 6:10am
      Mar 4, 2023

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike4633 miles6,309 ft16 miles1,165 ft
      #347#1859382,072817,926
      E-Bike44 miles610 ft2 miles1,027 ft
      #181#611,7953951
      Horse22 miles98 ft4,524 ft95 ft
      #371#215193
      Hike4032 miles4,570 ft14 miles1,148 ft
      #292#17811,992529
      Trail Running4032 miles4,570 ft14 miles1,148 ft
      #292#1781,991275
      Observed Trials22 miles272 ft3,862 ft262 ft
      2
      • By canadaka Trailforks & contributors
      • Admins: CTC, shill, spokesmanmtb, CMB
      • #7225 - 8,024 views

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