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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
ATV/ORV/OHV Filter
Max Vehicle Width
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US Cell Coverage
Legend
cell carrier legend

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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      351 trails
      titleriding areacityprovactivitytypeactivitytype
      700 ClubQuarry ParkEl GranadaCA
      Access RoadMonte Bello Open SpacePalo AltoCAmtbmtb
      Acorn TrailArastradero PreservePalo AltoCAmtbmtb
      Adobe Creek TrailPalo AltoPalo AltoCA
      Alameda Creek TrailFremontFremontCAmtbmtb
      Alameda Creek Trail NorthFremontFremontCAmtbmtb
      Alder SpringMonte Bello Open SpacePalo AltoCAmtbmtb
      Alpine Pond TrailPalo AltoPalo AltoCA
      Alpine RoadMonte Bello Open SpacePalo AltoCAmtbmtb
      Amphitheater TrailSugarloaf MountainBelmontCA
      Ancient Oak ConnectorMonte Bello Open SpacePalo AltoCAmtbmtb
      Ancient Oaks TrailMonte Bello Open SpacePalo AltoCAmtbmtb
      Anderson Landing RoadBig Basin Redwoods State ParkBoulder CreekCA
      Anza EsplanadeThe Presidio of San FranciscoSan FranciscoCA
      Arastradero Creek TrailArastradero PreservePalo AltoCAmtbmtb
      Arguello Parking Lot to RoadArguello ParkMenlo ParkCAmtbmtb
      Arguello TrailArguello ParkMenlo ParkCAmtbmtb
      Arguello Trail to Vista PointArguello ParkMenlo ParkCAmtbmtb
      Arguello TraverseArguello ParkMenlo ParkCA
      Arroyo TrailPedro MountainPacificaCAhikehike
      Audobon FrontageCaliforniaPortola ValleyCA
      Baquiano TrailPacificaPacificaCA
      Barnard AvenueThe Presidio of San FranciscoSan FranciscoCA
      Batteries to Bluffs TrailThe Presidio of San FranciscoSan FranciscoCAhikehike
      Battery East RoadSan Francisco CountySausalitoCA
      Bay Area Ridge TrailThe Presidio of San FranciscoSan FranciscoCA
      Bay Laurel TrailArastradero PreservePalo AltoCAmtbmtb
      Bay TrailThe Presidio of San FranciscoSan FranciscoCA
      Bella VistaMonte Bello Open SpacePalo AltoCAmtbmtb
      Belmont Canyon RoadWaterdog Lake & Open SpaceBelmontCA
      Belmont Edge TrailBelmontBelmontCA
      Berry TrailWaterdog Lake & Open SpaceBelmontCA
      Bishop Road CutoffSugarloaf MountainBelmontCA
      Black MambaQuarry ParkEl GranadaCAmtbmtb
      Black Mountain Camp RoadPalo AltoPalo AltoCAmtbmtb
      Black Mountain TrailMonte Bello Open SpacePalo AltoCAhikehike
      Blue BlossomEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Bo GimbalMonte Bello Open SpacePalo AltoCAmtbmtb
      Bonus HillArastradero PreservePalo AltoCAmtbmtb
      BoostSugarloaf MountainBelmontCAmtbmtb
      Borden Hatch Mill TrailPurisima Creek Redwoods Open Space PreserveWoodsideCA
      Bottom ClencherSugarloaf MountainBelmontCA
      Bottom Clencher AlternateSugarloaf MountainBelmontCA
      Bowl LoopArastradero PreservePalo AltoCAmtbmtb
      Bowls ConnectorArastradero PreservePalo AltoCAmtbmtb
      Box Canyon Fire RoadSugarloaf MountainBelmontCAmtbmtb
      Boy Scout TrailPedro MountainPacificaCAmtbmtb
      Burleigh Murray Ranch TrailHalf Moon BayHalf Moon BayCA
      Butano Fire RoadBig Basin Redwoods State ParkBoulder CreekCA
      Butano View TrailPalo AltoPalo AltoCA
      CA Coastal Trail (Dardanelle Trail)El GranadaEl GranadaCA
      CA Coastal Trail (Harbor to Poplar)El GranadaEl GranadaCA
      CA Coastal Trail (Redondo to Ritz)Half Moon BayHalf Moon BayCA
      Canyon Creek TrailWaterdog Lake & Open SpaceBelmontCAmtbmtb
      Captain HookSugarloaf MountainBelmontCAmtbmtb
      Carlmont Main TrailCarlmont HillsBelmontCAmtbmtb
      Carlmont Switch BacksCarlmont HillsBelmontCAmtbmtb
      Cattle Hill OutlookPacificaPacificaCAmtbmtb
      Chaparral TrailWaterdog Lake & Open SpaceBelmontCA
      CharquinPalo AltoPalo AltoCAmtbmtb
      Chestnut Trail & Tree Farm TrailPalo AltoPalo AltoCAmtbmtb
      Clarendon Knob TrailLaguna Honda Community Trail SystemSan FranciscoCA
      Clarendon TrailMount Sutro Open Space ReserveSan FranciscoCA
      Clouds RestMonte Bello Open SpacePalo AltoCAmtbmtb
      Coal Road TrailRussian Ridge Open Space PreserveLos AltosCAmtbmtb
      ComboverSan MateoSan MateoCAmtbmtb
      Coral Reef BackdoorEl GranadaEl GranadaCAmtbmtb
      Cowell Beach Access TrailWoodsideWoodsideCA
      Cowell-Purisima TrailHalf Moon BayHalf Moon BayCA
      Coyote Den MazeSugarloaf MountainBelmontCAmtbmtb
      CrackPedro MountainPacificaCAmtbmtb
      CrackerSugarloaf MountainBelmontCAmtbmtb
      Crazy Pete'sMonte Bello Open SpacePalo AltoCAmtbmtb
      Crazy Pete's RoadMonte Bello Open SpacePalo AltoCAmtbmtb
      Cream CornersCarlmont HillsBelmontCAmtbmtb
      Creek Overlook TrailSan MateoSan MateoCAmtbmtb
      Crissy FieldThe Presidio of San FranciscoSan FranciscoCA
      Cross TrailSugarloaf MountainBelmontCAmtbmtb
      Crosscut TrailEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      CrossoverEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Crystal SpringsHuddart County ParkWoodsideCA
      Devil's ButtcrackCarlmont HillsBelmontCAmtbmtb
      Devil's Slide TrailMontaraMontaraCA
      DMCCarlmont HillsBelmontCAmtbmtb
      Dolphine Fire RoadQuarry ParkEl GranadaCA
      Drown Road TrailMarin HeadlandsSausalitoCA
      Dumbarton BridgeHaywardHaywardCAmtbmtb
      East Ridge TrailMount Sutro Open Space ReserveSan FranciscoCA
      Ecology Trail (Lower)The Presidio of San FranciscoSan FranciscoCA
      Ecology Trail (Upper)The Presidio of San FranciscoSan FranciscoCA
      Ecology Trail ConnectorThe Presidio of San FranciscoSan FranciscoCAhikehike
      Edgewood TrailMount Sutro Open Space ReserveSan FranciscoCA
      EG BusQuarry ParkEl GranadaCA
      El Corte de Madera CreekEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      El Granada BlvdQuarry ParkEl GranadaCA
      El Granada Dirt JumpsEl GranadaEl GranadaCAmtbmtb
      El Granada RidgeEl GranadaEl GranadaCA
      El Polin Spring Connector TrailThe Presidio of San FranciscoSan FranciscoCA
      Elevator TrailWaterdog Lake & Open SpaceBelmontCA
      Ensatina TrailWaterdog Lake & Open SpaceBelmontCA
      Fairy Gates TrailMount Sutro Open Space ReserveSan FranciscoCA
      Farmer's DaughterEl GranadaEl GranadaCAhorsehorse
      Fifield RidgeBelmontBelmontCA
      Finch TrailWaterdog Lake & Open SpaceBelmontCA
      Fir Trail (Lower)El Corte de Madera Creek Open Space PreserveRedwood CityCA
      Fir Trail (Upper)El Corte de Madera Creek Open Space PreserveRedwood CityCA
      Fire RoadMonte Bello Open SpacePalo AltoCAmtbmtb
      FireroadSaratoga Gap Open Space PreserveSaratogaCAmtbmtb
      Five PointsBelmontBelmontCA
      Flat TopEl GranadaEl GranadaCAmtbmtb
      Fly AmanitaMontaraMontaraCAmtbmtb
      Foothill to Farm HillStulsaft ParkRedwood CityCAmtbmtb
      Fox School SingletrackBelmontBelmontCA
      Fox School TrailBelmontBelmontCAmtbmtb
      French TrailWaterdog Lake & Open SpaceBelmontCA
      Fulton TrailGolden Gate ParkSan FranciscoCA
      Gardener's TrailMount Sutro Open Space ReserveSan FranciscoCA
      Gazos Creek RoadBig Basin Redwoods State ParkBoulder CreekCA
      GGP Park Presidio/Stow Lake entranceGolden Gate ParkSan FranciscoCA
      Giant SalamanderEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Girl ScoutQuarry ParkEl GranadaCAmtbmtb
      Gods TrailEl GranadaEl GranadaCAmtbmtb
      Golden Gate Bridge (East)SausalitoSausalitoCA
      Golden Gate Bridge (West)SausalitoSausalitoCA
      Golden Gate PromenadeThe Presidio of San FranciscoSan FranciscoCA
      Gordon MillEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Grabtown Gulch TrailPurisima Creek Redwoods Open Space PreserveWoodsideCAmtbmtb
      GravitySugarloaf MountainBelmontCAmtbmtb
      Gray Whale Cove TrailMontaraMontaraCA
      Green Valley TrailMontaraMontaraCAmtbmtb
      Grizzly FlatSaratoga Gap Open Space PreserveSaratogaCAmtbmtb
      Grizzly Flat SouthSaratoga Gap Open Space PreserveSaratogaCAmtbmtb
      Hallmark LoopBelmontBelmontCA
      Harkins Ridge TrailPurisima Creek Redwoods Open Space PreserveWoodsideCA
      HawkMonte Bello Open SpacePalo AltoCAmtbmtb
      Hilltop - NorthPalo AltoPalo AltoCA
      Hilltop - Old RanchPalo AltoPalo AltoCA
      Hilltop - WestPalo AltoPalo AltoCA
      Historic TrailMount Sutro Open Space ReserveSan FranciscoCA
      Historic Trail - LowerMount Sutro Open Space ReserveSan FranciscoCA
      Horseshoe Loop TrailPalo AltoPalo AltoCA
      Indian CreekMonte Bello Open SpacePalo AltoCAmtbmtb
      Indian Creek Campground ConnectorPalo AltoPalo AltoCAmtbmtb
      Inspiration Point StairsThe Presidio of San FranciscoSan FranciscoCAhikehike
      Ipiwa TrailMonte Bello Open SpacePalo AltoCAhikehike
      Ipiwa TrailPalo AltoPalo AltoCA
      Jack DanielsCarlmont HillsBelmontCAmtbmtb
      James Drop-InBelmontBelmontCA
      Jean Lauer TrailEl GranadaEl GranadaCA
      Jean Lauer TrailEl GranadaEl GranadaCA
      Johansen RoadBig Basin Redwoods State ParkBoulder CreekCA
      John Brooks TrailWaterdog Lake & Open SpaceBelmontCA
      John Brooks TrailWaterdog Lake & Open SpaceBelmontCA
      John Brooks TrailheadWaterdog Lake & Open SpaceBelmontCA
      John F Kennedy Drive South TrailGolden Gate ParkSan FranciscoCA
      Juan Bautista de Anza TrailArastradero PreservePalo AltoCAmtbmtb
      Juvenile Justice TrailLaguna Honda Community Trail SystemSan FranciscoCA
      Keiths's Creative LineCarlmont HillsBelmontCAmtbmtb
      Kirby Cove RoadMarin HeadlandsSausalitoCA
      Labor of LoveWaterdog Lake & Open SpaceBelmontCA
      Lake Merced Bike PathLake Merced ParkSan FranciscoCA
      Lake Merced BridgeLake Merced ParkSan FranciscoCAmtbmtb
      Lake Road TrailWaterdog Lake & Open SpaceBelmontCA
      Laurelwood Park TrailSugarloaf MountainBelmontCAmtbmtb
      Laurelwood Park TrailSugarloaf MountainBelmontCAmtbmtb
      Lawrence CreekEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      LevyFoster CityFoster CityCAmtbmtb
      Lincoln Parkin TrailThe Presidio of San FranciscoSan FranciscoCA
      Lincoln TrailGolden Gate ParkSan FranciscoCA
      Lobos Creek Valley TrailThe Presidio of San FranciscoSan FranciscoCA
      Long Ridge RoadSaratoga Gap Open Space PreserveSaratogaCAmtbmtb
      Long Ridge TrailSaratoga Gap Open Space PreserveSaratogaCAmtbmtb
      Lovers' LaneThe Presidio of San FranciscoSan FranciscoCA
      Lower AmanitaMontaraMontaraCAmtbmtb
      Lower Ancient Oaks TrailMonte Bello Open SpacePalo AltoCAmtbmtb
      Lower FinchWaterdog Lake & Open SpaceBelmontCA
      Lower HallmarkBelmontBelmontCA
      Lower North Peak AccessMontaraMontaraCA
      Lower White OakMonte Bello Open SpacePalo AltoCAmtbmtb
      ManzanitaEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Mavericks DHEl GranadaEl GranadaCAmtbmtb
      Mavericks lookoutEl GranadaEl GranadaCAmtbmtb
      MeadowMonte Bello Open SpacePalo AltoCAmtbmtb
      Meadow Fire RoadQuarry ParkEl GranadaCA
      Meadowlark TrailArastradero PreservePalo AltoCAmtbmtb
      MethuselahEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      MethuselahEl Corte de Madera Creek Open Space PreserveRedwood CityCA
      Middle Ridge Fire RoadQuarry ParkEl GranadaCA
      Middle Ridge RoadBig Basin Redwoods State ParkBoulder CreekCA
      Middle Ridge TrailPedro MountainPacificaCA
      MilePedro MountainPacificaCAmtbmtb
      Mindego Hill TrailRussian Ridge Open Space PreserveLos AltosCAmtbmtb
      Mirada East Fire RoadQuarry ParkEl GranadaCA
      Monte Cresta BypassSugarloaf MountainBelmontCAmtbmtb
      Montebello RoadMonte Bello Open SpacePalo AltoCAmtbmtb
      Mori PointPacificaPacificaCAmtbmtb
      Mountain Lake TrailThe Presidio of San FranciscoSan FranciscoCA
      Mystery TrailMount Sutro Open Space ReserveSan FranciscoCA
      N. Sunny JimMonte Bello Open SpacePalo AltoCAmtbmtb
      Naomi Patridge TrailHalf Moon BayHalf Moon BayCA