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
Max Vehicle Width

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
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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      No trails have been added to Angel Island State Park.
      Help build the crowd sourced database by submitting a trail.

      Angel Island State Park has a majority of scenic biking and walking trails.
      Primary Trail Type: All-Mountain & Downhill
      eBikes Allowed: Yes
      AKA: Angel Island
      Land Status: State Park
      Land Manager: California State Parks
      Access Info:
      You can take the Tiburon Ferry, Blue & Gold Ferry, and East Bay Ferry to get to Ayala Cove in Angel Island.
      Activities Click to view
      Region Details

      Region Status
      Open as of Sep 14, 2021


      Trails (view details)

      Angel Island State Park Mountain Bike Routes

      Treasure Island Path
      2 miles

      Recent Ride Log Activity in Region

      • 0 rides
      • 1 rides
      Past Week
      • 3 rides

      Activity Feed

      user #1949841maddy03addrouteTreasure Island Path
      Aug 26, 2022 @ 12:20pm
      Aug 26, 2022

      Nearby Areas

      Marin Headlands 16 12 14.8 km
      The Presidio of San Francisco 53 3 14.8 km
      East Bay Waterfront 36.4 km
      Mount Tamalpais State Park 8 26 56.7 km
      Golden Gate Park 2987.1 km

      • By seanthe89 & contributors
      • Admins: A4B, MCBC
      • #35039 - 895 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Angel Island State Park.
      You must login to download files.