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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • 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
  • < 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
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
Warning A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
x Missing Trails
Most Popular
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.
Trails Deemphasized
Trails are shown in grey.
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      Las Trampas Wilderness Regional Preserve offers 5,778 acres of wilderness and an expanded trail system that allows hikers and horseback riders to enjoy its remote and rugged areas. The park's size and terrain allow visitors a feeling of privacy and escape from urban hustle and bustle. Carry plenty of drinking water for yourself, your dog(s), and your horse(s) when visiting the park. The park's water supply is inconsistent and water may be unavailable at any time.
      Primary Trail Type: Cross-Country
      Land Status: Regional Recreation Area
      Ringtail Cat Staging google parking directions
      Activities Click to view
      Region Details
      • 12
      • 9
      • 27
      • 11

      Region Status
      Caution as of Mar 18, 2023

      Stats

      Avg Trail Rating
      Trails (view details)
      93
      Trails Mountain Bike
      59
      Trails Horse
      24
      Trails Hike
      92
      Trails Trail Running
      92
      Total Distance
      91 miles
      Total Descent
      27,314 ft
      Total Vertical
      1,749 ft
      Highest Trailhead
      2,012 ft
      Reports
      61
      Photos
      19
      Ridden Counter
      1,964

      Photos of Las Trampas Regional Park Mountain Bike

      trail: Cow Trail I
      33 |
      Jun 24, 2021 @ 9:53am
      Jun 24, 2021
      158 |
      Jun 19, 2020 @ 6:41am
      Jun 19, 2020
      98 |
      Jun 19, 2020 @ 6:41am
      Jun 19, 2020
      100 |
      Jun 19, 2020 @ 6:41am
      Jun 19, 2020
      117 |
      Jun 19, 2020 @ 6:41am
      Jun 19, 2020
      trail: Birthday
      122 |
      May 11, 2020 @ 12:48am
      May 11, 2020
      trail: Birthday
      109 |
      May 11, 2020 @ 12:47am
      May 11, 2020
      63 |
      Mar 11, 2020 @ 11:55pm
      Mar 11, 2020

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      JROB656addreportactivity #46849771
      Dec 1, 2023 @ 10:56am
      Dec 1, 2023
      ooolongTwishlistrouteactivity #46701225
      Nov 26, 2023 @ 12:28pm
      Nov 26, 2023
      Mehnikewishlistregionactivity #45230491
      Oct 14, 2023 @ 1:31pm
      Oct 14, 2023
      gamadjgwishlistregionactivity #44941903
      Oct 6, 2023 @ 10:14pm
      Oct 6, 2023
      PB58QSHtvotetrailactivity #44265300
      Sep 18, 2023 @ 6:43pm
      Sep 18, 2023

      Recent Comments

      usernametypetitlecommentdate
      unnamedpersontrailRalph's TrailPretty meh trail. Decently steep with little...
      Jun 30, 2023 @ 10:03am
      Jun 30, 2023
      5ahofTtrailBear Tree Rd.Gated entrance from Bollinger Canyon Rd. Is...
      Jun 14, 2023 @ 7:36am
      Jun 14, 2023
      Kacooper33trailUpper Bollinger Creek LoopMain fire road was just fine. Any single or...
      Apr 26, 2023 @ 8:38pm
      Apr 26, 2023
      mountainbaggertrailRamage TrailDont bother. At one time this trail was...
      Feb 19, 2023 @ 11:12pm
      Feb 19, 2023
      Jdubb7780trailLafayette DropCrosses fences not single track.. the...
      Feb 18, 2023 @ 12:36pm
      Feb 18, 2023

      Nearby Areas

      namedistance
      Sugarloaf Open Space 73.2 km
      Shell Ridge Open Space 24 38 10 24.8 km
      Diablo Foothills Regional Park 4 17 25.2 km
      Anthony Chabot Regional Park 13 96.4 km
      Acalanes Ridge 3 76.5 km

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike5967 miles20,092 ft36 miles1,749 ft
      #7,863#3,340195721,244
      Horse2432 miles8,855 ft17 miles1,640 ft
      #433#323153
      Hike9291 miles27,251 ft50 miles1,749 ft
      #7,276#3,35658416
      Trail Running9291 miles27,251 ft50 miles1,749 ft
      #7,261#3,34158332
      • By allanchandler & contributors
      • Admins: BTCEB, bkxc
      • #20597 - 6,936 views
      • las trampas regional park activity log | embed map of Las Trampas Regional Park mountain bike trails | las trampas regional park mountain biking points of interest polygons

      Downloading of trail gps tracks in kml & gpx formats is enabled for Las Trampas Regional Park.
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