Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • 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
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.
Only show trails with NO bikes.

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      The eastern portion of the Trinity Alps Wilderness are accessed from trailheads along CA-3 between Trinity Lake and Callahan. The core of the Alps can also be accessed from trailheads along a cherry-stem into the Wilderness that is the Coffee Creek Road (CR-104)

      The second largest wilderness area in California, the Trinity Alps Wilderness nearly doubled in size by the 1984 California Wilderness Act. In that same year, it was added to the National Wilderness Preservation System. It currently has over 600 miles of trails and embraces over 500,000 acres of land.

      Chiseled granite peaks and alpine lakes dot the Trinity Alps Wilderness, with elevations from 2,000 feet in creek drainages to 9,000 feet at summits. This wilderness offers many different trails ranging from 1.5 miles to 15 miles at varying levels of difficulty.
      Swift Creek / Granite Lake Trailhead google parking directions
      Activities Click to view
      Region Details
      89 hike trails

      Region Status
      Open as of Jun 16, 2024

      Hike Stats

      State Ranking
      Trails (view details)
      Trails Horse
      Trails Hike
      Trails Trail Running
      Total Distance
      299 miles
      Total Descent Distance
      92 miles
      Total Descent
      47,175 ft
      Total Vertical
      5,148 ft
      Ridden Counter

      Recent Trail Reports

      Caribou Lakes
      Jul 23, 2022 @ 9:04pm
      Jul 23, 2022
      DryTrail is basically completely covered in...ebtrek

      Activity Feed

      warganicwishlisttrailactivity #42313909
      Jul 28, 2023 @ 11:44pm
      Jul 28, 2023
      ELAINEJIif0Cwishlistrouteactivity #42304385
      Jul 28, 2023 @ 7:16pm
      Jul 28, 2023
      mds549wishlisttrailactivity #42141039
      Jul 24, 2023 @ 8:46am
      Jul 24, 2023
      KeithboC6Recommenttrailactivity #41311120
      Jun 27, 2023 @ 1:07pm
      Jun 27, 2023
      Myaunwishlisttrailactivity #41092084
      Jun 19, 2023 @ 8:09pm
      Jun 19, 2023

      Recent Comments

      KeithboC6RetrailPoison Canyon2023 made it to forf 6000 feet ,stop by snow...
      Jun 27, 2023 @ 1:07pm
      Jun 27, 2023
      KeithboC6RetrailBig Boulder Lake2023 june 15 6 1/2 mile up the road hit snow,...
      Jun 10, 2023 @ 5:50pm
      Jun 10, 2023

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Horse76264 miles40,902 ft81 miles5,148 ft
      Hike89299 miles47,175 ft92 miles5,148 ft
      Trail Running83284 miles43,947 ft87 miles5,148 ft
      • By chuktA TRAILFORKS NFTA & contributors
      • Admins: TTA, WRTC
      • #52820 - 240 views
      • trinity alps wilderness (eastern) activity log | embed map of Trinity Alps Wilderness (Eastern) mountain bike trails | trinity alps wilderness (eastern) mountain biking points of interest

      Downloading of trail gps tracks in kml & gpx formats is enabled for Trinity Alps Wilderness (Eastern).
      You must login to download files.