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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
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Trail Last Ridden
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Trail Ridden Direction
The intended direction a trail should be ridden.
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Contribute Details
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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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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
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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
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      Alum Rock Park, in the Alum Rock district of San Jose, California, is California's oldest municipal park, established in 1872 but serving as public land since the pueblo was established in 1777. Located in a valley in the Diablo Range foothills on the east side of San Jose, the 720 acre (2.9 km2) park offers 13 miles (21 km) of trails, varying from fairly level along Penitencia Creek to sharp switchbacks climbing to the ridges to the South Rim Trail and the North Rim Trail. The narrow floor of the valley includes a visitor center, a small museum/animal rehab facility, picnic areas, playgrounds, lawns, sand volleyball pits, mineral springs, lush plant life, woodlands, creek play opportunities, and occasional group camping.
      Primary Trail Type: Cross-Country
      Land Status: Municipal Park
      Parking google parking directions
      Activities Click to view
      Region Details
      • 2
      • 14
      • 8

      Region Status
      Caution as of Nov 30, 2024

      Stats

      Avg Trail Rating
      Trails (view details)
      26
      Trails Mountain Bike
      25
      Trails Hike
      27
      Trails Trail Running
      26
      Total Distance
      23 miles
      Total Descent
      4,039 ft
      Total Vertical
      1,784 ft
      Highest Trailhead
      2,083 ft
      Reports
      178
      Photos
      38
      Ridden Counter
      3,302

      Photos of Alum Rock Park Mountain Bike

      trail: Sierra Vista
      4 |
      Dec 22, 2024 @ 9:21pm
      Dec 22, 2024
      trail: Sierra Vista
      4 |
      Dec 22, 2024 @ 9:21pm
      Dec 22, 2024
      trail: Lariat Trail
      13 |
      Aug 25, 2023 @ 5:43pm
      Aug 25, 2023
      trail: Lariat Trail
      15 |
      Aug 25, 2023 @ 5:43pm
      Aug 25, 2023
      trail: Lariat Trail
      14 |
      Aug 25, 2023 @ 5:43pm
      Aug 25, 2023
      trail: Lariat Trail
      29 |
      Aug 25, 2023 @ 5:43pm
      Aug 25, 2023
      trail: Aquila Loop
      44 |
      Oct 24, 2022 @ 7:27am
      Oct 24, 2022
      49 |
      May 18, 2022 @ 4:49pm
      May 18, 2022

      Videos of Alum Rock Park Mountain Bike

      Todd Quick East [DH]
      0:42 | 169 | Jun 10, 2022 , San Jose
      Upper Calaveras Fault Trail
      2:48 | 299 | Apr 7, 2022 , San Jose
      Sierra Vista aka Don't Look Down on Strava
      3:51 | 205 | Apr 6, 2022 , San Jose
      Lower Calaveras Fault Trail | Sierra Vista...
      3:59 | 371 | Apr 5, 2022 , San Jose
      Alum Rock Park “Boccardo Loop” (Difficult)...
      4:17 | 288 | Jan 25, 2022 , San Jose
      Alum Rock Park “Boccardo” (Advanced) San...
      trail: Baccardo
      9:33 | 306 | Jan 25, 2022 , San Jose
      e-MTB | February 2021 Sunset Ride at Alum Rock...
      trail: Baccardo
      3:22 | 290 | Mar 28, 2021 , San Jose
      e-MTB | February 2021 Sunset Ride at Alum Rock...
      3:22 | 253 | Mar 28, 2021 , San Jose

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      2-wheelsaddphotoactivity #63395965 and 1 more
      Dec 22, 2024 @ 9:21pm
      Dec 22, 2024
      teosoftaddreportactivity #62526504 and 1 more
      Nov 30, 2024 @ 6:02pm
      Nov 30, 2024
      Cesar6DsWMcwishlistrouteactivity #60094203
      Oct 6, 2024 @ 11:34pm
      Oct 6, 2024
      santacruuzcommenttrailactivity #57840234
      Aug 26, 2024 @ 1:29pm
      Aug 26, 2024
      santacruuzriddentrailactivity #57839978
      Aug 26, 2024 @ 1:23pm
      Aug 26, 2024

      Recent Comments

      usernametypetitlecommentdate
      santacruuztrailBaccardoXC trail with a steep climb and switchbacks. ...
      Aug 26, 2024 @ 1:29pm
      Aug 26, 2024
      derrickttrailPeacock Gap TrailThis is a short single track from the service...
      Aug 26, 2024 @ 9:40am
      Aug 26, 2024
      DooobytrailAquila LoopClock-wise is more fun. Counter-clockwise more...
      May 19, 2023 @ 3:56pm
      May 19, 2023
      polarsun00trailCutoff TrailIt's a steep and loose gravel road, not a...
      Mar 26, 2023 @ 3:38pm
      Mar 26, 2023
      dangernoodle92808trailBaccardoSteep, boring climb. No fun ways to go back...
      Aug 25, 2022 @ 11:28pm
      Aug 25, 2022

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike2520 miles3,232 ft8 miles1,785 ft
      #2,525#1,3353217813,108
      Hike2723 miles4,039 ft9 miles1,785 ft
      #1,989#1,1986179223
      Trail Running2623 miles3,802 ft9 miles1,785 ft
      #1,980#1,192179112
      • By aguynamedjoeTF Pro & contributors
      • Admins: SVMTB
      • #22307 - 10,977 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Alum Rock Park.
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