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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 intended 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
  • 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
      No description for Big South Fork has been added yet! Login or register to submit one. Parking google parking directions
      Region Details
      • 4
      • 5
      • 4

      Region Status
      Caution as of Oct 7, 2019 ago

      Stats

      Avg Trail Rating
      Global Ranking
      #5,333
      State Ranking
      #41
      Trails (view details)
      13
      Trails Mountain Bike
      13
      Trails Hike
      13
      Trails Trail Running
      13
      Total Distance
      40 miles
      Total Descent
      7,642 ft
      Total Vertical
      497 ft
      Highest Trailhead
      1,664 ft
      Reports
      8
      Photos
      14
      Ridden Counter
      267

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      • 0 ft avg distance
      Yesterday
      • 1 rides
      • 10 miles avg distance
      Past Week
      • 2 rides
      • 16 miles avg distance

      Photos of Big South Fork Mountain Bike

      trail: John Muir
      34 |
      Aug 6, 2017 @ 2:12pm
      Aug 6, 2017
      57 |
      Apr 11, 2017 @ 10:48am
      Apr 11, 2017
      92 |
      Jan 27, 2017 @ 8:17pm
      Jan 27, 2017
      60 |
      Mar 4, 2016 @ 7:56am
      Mar 4, 2016

      Videos of Big South Fork Mountain Bike

      Big South Fork - POV
      7:09 | 124 | Dec 19, 2015

      Current Trail Warnings

      statustraildateconditionuserinfo
      John Muir Trail
      Oct 7, 2019 @ 2:12am
      Oct 7, 2019
      UnknownSlipperman44Closed for muddy conditions

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1953349RobbieMTBriddentrailGrand Gap Loop
      Oct 11, 2019 @ 8:27am
      Oct 11, 2019
      user #1672541Slipperman44commentreportJohn Muir Trail
      Oct 7, 2019 @ 2:14am
      Oct 7, 2019
      user #1672541Slipperman44addreportJohn Muir Trail
      Oct 7, 2019 @ 2:13am
      Oct 7, 2019
      user #1895854PlinckwishlisttrailGrand Gap Loop and 9 more
      Aug 15, 2019 @ 7:15pm
      Aug 15, 2019
      user #1637677SprokituswishlisttrailJohn Muir
      Aug 4, 2019 @ 2:33pm
      Aug 4, 2019

      Recent Comments

      usernametypetitlecommentdate
      user #1672541Slipperman44reportJohn Muir TrailWas there Sunday. Closed to mountain bikes
      Oct 7, 2019 @ 2:14am
      Oct 7, 2019

      Nearby Areas

      namedistance
      Windrock Bike Park 1 3 5 435 km
      Windrock XC 1 6 2 437.3 km
      • By brenthillier NSMBA TRAILFORKS Plus & contributors
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      • big south fork activity log | embed map of Big South Fork mountain bike trails | big south fork mountain biking points of interest
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