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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
ATV/ORV/OHV Filter
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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
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
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      The Northwest region (Mammoth-Gallatin region) is a land of extremes. Elevations within the Mammoth area range from about 5,000 to 11,000 feet, with the lowest (in the park) near the Yellowstone River and the highest at Electric Peak, just miles away. The Gallatin Range, which sticks it thumb into Yellowstone for 20 miles from the north, includes about 19 peaks. Of these. Electric Peak (10,992 feet) dominates the northern end, and Mount Holmes (10,336 feet) marks the southern end.

      The Gallatin Mountains are an uplifted range composed of stratified shales, limestones and sandstones dipping slightly northward. The composition of these limestones and the presence of oceanic fossils testifies that they once were part of large inland seas. Rugosa-or horn-corals, bryozoans and clam-shaped fossils are embedded on the slopes of these mountains.

      The influence of limestone in the Mammoth area also has changed the makeup of the hydrothermal features. Elsewhere in the park, the surrounding rock is composed of silica dioxide, an essential element in the formation of geysers. But, here, the presence of calcium carbonate produces the unusual travertine terraces of Mammoth.
      Garnet Hill trailhead google parking directions
      Links
      Activities Click to view
      Region Details
      • 28
      • 2
      • 4

      Region Status
      Caution as of Jun 20, 2020

      Stats

      Trails (view details)
      123
      Trails Mountain Bike
      34
      Trails E-Bike
      20
      Trails Horse
      27
      Trails Hike
      122
      Trails Trail Running
      119
      Trails Dirtbike/Moto
      16
      Trails Observed Trials
      16
      Trails ATV/ORV/OHV
      16
      Trails Snowshoe
      1
      Trails Nordic Ski
      1
      Total Distance
      313 miles
      Total Descent Distance
      144 miles
      Total Descent
      45,730 ft
      Total Vertical
      5,493 ft
      Highest Trailhead
      10,771 ft
      Reports
      20
      Photos
      7
      Ridden Counter
      832

      Photos of Yellowstone - Northwest Region Mountain Bike

      8 |
      Jul 10, 2021 @ 6:05pm
      Jul 10, 2021
      9 |
      Jul 10, 2021 @ 6:04pm
      Jul 10, 2021
      8 |
      Jul 10, 2021 @ 6:04pm
      Jul 10, 2021
      14 |
      Jul 10, 2021 @ 6:04pm
      Jul 10, 2021
      26 |
      Jul 10, 2021 @ 6:04pm
      Jul 10, 2021
      22 |
      Jun 6, 2021 @ 9:05pm
      Jun 6, 2021
      22 |
      Jun 6, 2021 @ 9:05pm
      Jun 6, 2021

      Recent Trail Reports

      statustraildateconditioninfouser
      Grand Loop Road
      May 9, 2021 @ 12:24pm
      May 9, 2021
      IdealHike Pavedjeshbarlow
      Grand Loop Road
      May 9, 2021 @ 12:24pm
      May 9, 2021
      IdealHike Pavedjeshbarlow
      Osprey Falls Trail
      May 1, 2021 @ 11:45am
      May 1, 2021
      DryGood condition on May 1. Mostly dry.markegge
      Old Bunsen Peak Road
      May 1, 2021 @ 11:45am
      May 1, 2021
      Prevalent MudLots of snow and mud. Give it another 2...markegge
      Old Gardiner Road
      Sep 23, 2020 @ 4:55pm
      Sep 23, 2020
      Very DryPerfecttrailforks OMTBO
      Yak Campground Rd
      Jun 20, 2020 @ 10:52am
      Jun 20, 2020
      Idealtrailforks OMTBO
      YCC Trail
      Jun 20, 2020 @ 10:52am
      Jun 20, 2020
      Idealtrailforks OMTBO

      Activity Feed

      usernameactiontypetitledate
      user #2537018markeggeaddreportDaly Creek and 2 more
      Jul 3, 2022 @ 4:39pm
      Jul 3, 2022
      user #2676059LukeAdFXJdwishlisttrailOld Gardiner Road and 2 more
      May 16, 2022 @ 6:22pm
      May 16, 2022
      user #1136507gregb406commenttrailAccess Road
      Apr 27, 2022 @ 9:55am
      Apr 27, 2022
      user #1136507gregb406commenttrailChittenden Loop Trail
      Apr 21, 2022 @ 2:39pm
      Apr 21, 2022
      user #3002061TopstownerwishlisttrailOld Gardiner Road
      Mar 27, 2022 @ 2:43pm
      Mar 27, 2022

      Recent Comments

      usernametypetitlecommentdate
      user #1136507gregb406trailAccess RoadIf only! This isn't a legal bike route. It's...
      Apr 27, 2022 @ 9:55am
      Apr 27, 2022
      user #2133230bishop-bikertrailOsprey Falls TrailYou can’t bike down to osprey falls like...
      Jun 26, 2021 @ 8:50pm
      Jun 26, 2021
      user #1744573bcdanutrailGrand Loop Road Mammoth Hot Springs to Norris Canyon Rd)The route shown on the map doesn't match the...
      Sep 9, 2020 @ 9:20am
      Sep 9, 2020

      Nearby Areas

      namedistance
      Riverside Ski Trails14.9 km
      Rendezvous Trails 2 10 217.2 km
      Lionhead 9 421.6 km
      Madison Range 2 9 1322 km
      Yellowstone - Old Faithful Region 222.4 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike3463 miles5,043 ft31 miles3,832 ft
      #10,458#4,43319127
      E-Bike2035 miles2,556 ft13 miles3,819 ft
      #4,151#887192
      Horse2753 miles5,328 ft27 miles3,809 ft
      #1,045#7022
      Hike122311 miles45,728 ft144 miles5,492 ft
      #9,374#4,287720291
      Trail Running119285 miles42,477 ft131 miles5,492 ft
      #9,342#4,2532038
      Dirtbike/Moto1611 miles1,362 ft6 miles3,619 ft
      #4581
      Observed Trials1611 miles1,362 ft6 miles3,619 ft
      #571
      ATV/ORV/OHV1611 miles1,362 ft6 miles3,619 ft
      #3331
      Snowshoe1394 ft10 ft394 ft13 ft
      1
      Nordic Ski12 miles696 ft
      4
      • By WillieJacobsz TRAILFORKS Trailforks Map Team & contributors
      • Admins: apply
      • #31641 - 1,293 views
      • yellowstone - northwest region activity log | embed map of Yellowstone - Northwest Region mountain bike trails | yellowstone - northwest region mountain biking points of interest

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