12 miles
1,158 ft
-1,160 ft
439 ft
High Point

ADVANCED aMTB2 TRAILS! Adaptive riders may or may not be able to ride this route solo, depending on ability level. Support rider strongly recommended, at least for first attempt.

This loop is created for adaptive mountain bikers and is rated as aMTB 2! It has very advanced sections, especially Tunnels. Adaptive riders may not be able to ride this route solo. Support rider strongly recommended, at least for first attempt. See UNCUT TRAIL VIDEOS in Video Section. If you are riding solo, please see our Safe Solo AMTB-1 loop recommended for this area. See link below.



AMTB 1 - No obstacles exist. Wide enough. Can be ridden confidently solo.

AMTB 2 - Some obstacles exist. You may or may not be able to ride this solo. Support rider recommended, at least for first attempt.

AMTB 3 - Major obstacles exist. You will NOT be able to ride this solo. Support rider needed.

For questions, please email contact@theunpavement.com

Local Trail Association
San Diego Mountain Biking Association (sdmba.com)
Please consider joining or donating to the local riding association to support trail development & maintenance.
donate to earn trail karma!


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Trails in Route

Cobbles4,829 ft
Wagon Wheel Crossing194 ft
Bowtie Rim2,589 ft
Tunnel 44,649 ft

Route POI

ParkingHandyman ParkingParking
Water Fountain/SourceWater Fountain/SourceWater Fountain/Source
Trail SignInformationTrail Sign
WarningTrailhead to Cobbles DHWarning
DirectionsTurn Left Towards TrailheadDirections
DirectionsContinue Straight/Slight RightDirections
ViewpointDuck Pond View PointViewpoint
DirectionsContinue StraightDirections
TTFLarge TabletopTTF
TTFSteep Rock GardenTTF
DirectionsTurn Right for Long LoopDirections
WarningAdvanced TrailWarning
TTFRock GardenTTF
TTFNarrow BridgeTTF
TTFRock GardenTTF
TTFNarrow BridgeTTF
DirectionsTurn Left for Wagon Wheel CrossingDirections
TTFNarrow BridgeTTF
DirectionsTurn LeftDirections
InformationWaterfall - No AccessInformation
InformationWaterfall - No accessInformation
InformationWaterfall - No AccessInformation
DirectionsTurn LeftDirections
DirectionsStay LeftDirections
DirectionsContinue StraightDirections
DirectionsSlight RightDirections
DirectionsTurn Right to Stay on Long RouteDirections
DirectionsVeer LeftDirections
Trail SignTrail SignTrail Sign
DirectionsTurn RightDirections
WarningNarrow TrailWarning
WarningNarrow TrailWarning
DirectionsContinue Straight Under GateDirections
GateGate - Go UnderGate
TTFCircle Berm - Try It!TTF
Trail SignTrail Sign - Tunnel 4Trail Sign
DirectionsStay Straight - Not a Legal TrailDirections
Trail SignTrail SignTrail Sign
WarningWARNING: Things Get TrickyWarning
DirectionsContinue StraightDirections
DirectionsTurn Right onto Fire RoadDirections
WarningWARNING: Large LipWarning
GateGate - Barb WireGate
WarningWarning - Take the High RoadWarning
DirectionsTurn Left onto Fire RoadDirections
DirectionsTurn Right to Stay on RouteDirections
DirectionsTurn Left - Get Ready to ClimbDirections
DirectionsTurn Left - Towards StablesDirections
DirectionsTurn Left Again - Towards RoadDirections
DirectionsCross Street and Catch Horse PathDirections
InformationaMTB3 Trail - Support Rider NeededInformation
DirectionsCross road, Hop Curb and Turn RightDirections
DirectionsTurn Left - You're Done!Directions
DirectionsTurn left onto Deer Canyon WestDirections
TTFSteep UndulationTTF
DirectionsStay LeftDirections


  • Riding area
  • Primary Activity
    Mountain Bike
  • Difficulty rating
  • Route Type
  • eBike Allowed
  • Bike type
    AM, Adaptive MTB
  • Direction
    Both Directions
  • Physical rating
  • Ridelogs
More Stats for Los Penasquitos Canyon Loop aMTB-2 mountain bike route
  • Altitude min
    51 ft
  • Altitude start
    405 ft
  • Altitude end
    403 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    5 miles
  • Distance down
    5 miles
  • Distance flat
    4,632 ft
Avg: 4 (1 votes)
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 intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
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

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
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      Trail transparency
      Tunnel 4 UNCUT aMTB
      Tunnel 4 UNCUT aMTB
      10:51 | 80 | comments: 0 | favs:
      Oct 19, 2018
      Little Berms aMTB
      Little Berms aMTB
      0:37 | 56 | comments: 0 | favs:
      Oct 19, 2018
      Little Berms aMTB
      Little Berms aMTB
      0:53 | 47 | comments: 0 | favs:
      Oct 19, 2018

      Recent Trail Reports Along Route

      Bowtie Rim
      Sep 18, 2019 @ 8:45am
      Sep 18, 2019
      Tunnel 4
      Sep 3, 2019 @ 7:40pm
      Sep 3, 2019
      Dry with many loose rocks. Watch out at the beginning for loose rocks and throughout the ride there are roots so be careful.
      Wagon Wheel Crossing
      Aug 25, 2019 @ 8:00am
      Aug 25, 2019
      Aug 22, 2019 @ 5:36pm
      Aug 22, 2019
      One of the best trails out there. More speed you ride this trial the better it is. Remember to watch out for others. Best during later part of the day.
      more reports »
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