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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • 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 intendid 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

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
  • 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
  • Water Fountain/Source Water Fountain/Source
  • Sight Sight
  • Restrooms Restrooms
  • Gate Gate
  • Camping Camping
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Table or Bench eBike Charging Point
  • Other Other
      Oldest park in San Jose connects to Sierra Vista Open Space Preserve
      Primary Trail Type: Cross-Country
      Parking google parking directions
      Region Details
      • 1
      • 7
      • 6


      Open on Mar 24, 2019

      Stats

      Avg Trail Rating
      Global Ranking
      #4,158
      State Ranking
      #202
      Trails (view details)
      14
      Trails Mountain Bike
      14
      Trails Hike
      14
      Trails Trail Running
      14
      Total Distance
      15 miles
      Total Descent
      2,207 ft
      Total Vertical
      1,763 ft
      Highest Trailhead
      2,062 ft
      Reports
      11
      Photos
      8
      Ridden Counter
      167

      Photos of Alum Rock Park Mountain Bike

      trail: Baccardo
      18 |
      Dec 2, 2018 @ 5:06pm
      Dec 2, 2018
      trail: Baccardo
      19 |
      Dec 2, 2018 @ 5:06pm
      Dec 2, 2018
      trail: Baccardo
      17 |
      Dec 2, 2018 @ 5:06pm
      Dec 2, 2018
      trail: Baccardo
      20 |
      Dec 2, 2018 @ 5:06pm
      Dec 2, 2018

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1331215MccraigoraddridelogApr 23, 2019 ride log
      Apr 24, 2019 @ 3:28am
      2 days
      user #1608834JasonLTLaddridelogApr 20, 2019 ride log
      Apr 21, 2019 @ 6:03am
      Apr 21, 2019
      user #1197228leo76dragonaddridelogApr 20, 2019 ride log
      Apr 21, 2019 @ 1:14am
      Apr 21, 2019
      user #1756238y4yDwishlisttrailUpper Penetencia Creek Trail
      Apr 19, 2019 @ 10:28am
      Apr 19, 2019
      user #869354markd0naldsaddridelogApr 19, 2019 ride log
      Apr 19, 2019 @ 8:08am
      Apr 19, 2019

      Nearby Areas

      namedistance
      Lake Cunningham5 km
      Mission Peak 1 17.1 km
      Santa Teresa County Park 6 9 2 113.4 km
      Del Valle Regional Park 5 413.8 km
      Heintz Open Space 114.3 km
      • By joefabris & contributors
      • Admins: apply
      • #22307 - 714 views
      • alum rock park activity log | embed map of Alum Rock Park mountain bike trails | alum rock park 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 Alum Rock Park.
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