close
3D
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
inches
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.
disable
Only show trails with NO bikes.
enable

Save the current map location and zoom level as your default home location whenever this page is loaded.

Save
      The Mesa resulting form the lava flows of A1 Mountain.
      Primary Trail Type: Cross-Country
      AKA: Mars Hill
      Activities Click to view
      Region Details
      • 3
      • 1
      • 1
      • 1

      Region Status
      Open as of Dec 25, 2024
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      6
      Trails Mountain Bike
      6
      Trails E-Bike
      1
      Trails Horse
      5
      Trails Hike
      6
      Trails Trail Running
      6
      Total Distance
      7 miles
      Total Descent
      842 ft
      Total Vertical
      456 ft
      Highest Trailhead
      7,397 ft
      Reports
      23
      Photos
      1
      Ridden Counter
      1,394

      Popular Observatory Mesa Mountain Biking Trails

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 4 rides
      Past Week
      • 19 rides

      Photos of Observatory Mesa Mountain Bike

      10 |
      Oct 6, 2024 @ 9:16am
      Oct 6, 2024

      Videos of Observatory Mesa Mountain Bike

      FUTS jump
      0:19 | 387 | Mar 3, 2015
      Hide and Seek on Mars Hill trail // Flagstaff MTB
      6:16 | 482 | Aug 4, 2020 , Flagstaff
      Hide and Seek on Mars Hill trail // Flagstaff MTB
      6:16 | 367 | Aug 4, 2020 , Flagstaff
      Hide and Seek on Mars Hill trail // Flagstaff MTB
      6:16 | 308 | Aug 4, 2020 , Flagstaff

      Recent Trail Reports

      statustraildateconditioninfouser
      FUTS (Alt)
      Dec 25, 2024 @ 10:56am
      Dec 25, 2024
      UnknownSnowshoe Dkuma
      Flagstaff Loop (Observatory Mesa)
      Oct 4, 2024 @ 4:07pm
      Oct 4, 2024
      DryFattieMcFat MFBS
      FUTS - Thorpe
      Oct 4, 2024 @ 4:07pm
      Oct 4, 2024
      DryFattieMcFat MFBS
      FUTS - Tunnel Springs
      Mar 3, 2024 @ 5:13pm
      Mar 3, 2024
      IdealRailroad springs climb is completely dry...EMokelke
      Thorpe Gulley
      Jan 26, 2024 @ 8:35am
      Jan 26, 2024
      VariableTrail Running laurenvanier
      FUTS - Mars Hill
      Apr 14, 2021 @ 9:32pm
      Apr 14, 2021
      DryAll good to rideEverettSherry

      Activity Feed

      usernameactiontypetitledate
      Cameron2Mu5GCwishlisttrailactivity #70122249
      Apr 21, 2025 @ 6:57pm
      Apr 21, 2025
      Jaime6feNQCwishlistrouteactivity #64339230
      Jan 9, 2025 @ 5:50pm
      Jan 9, 2025
      derrickdgregoryriddentrailactivity #64113992
      Jan 5, 2025 @ 6:38am
      Jan 5, 2025
      Dkumaaddreportactivity #63508959
      Dec 25, 2024 @ 10:56am
      Dec 25, 2024
      bigboyriffswishlistrouteactivity #62290638
      Nov 25, 2024 @ 11:49am
      Nov 25, 2024

      Recent Comments

      usernametypetitlecommentdate
      jrobotrailFlagstaff Loop (Observatory Mesa)Fun, curvy and mildly rocky with a fun descent...
      Oct 21, 2020 @ 1:59am
      Oct 21, 2020
      ponderosatreytrailFUTS - Tunnel SpringsAs of 2019 This is part of the Flagstaff Loop...
      Dec 4, 2019 @ 12:15pm
      Dec 4, 2019
      ScrebnertrailFlagstaff Loop (Observatory Mesa)Definitely more challenging than the Mars Hill...
      Oct 11, 2019 @ 5:14pm
      Oct 11, 2019
      SethrpollacktrailFlagstaff Loop (Observatory Mesa)Mildly rocky which was a bit much on gravel bike
      Jul 29, 2019 @ 11:11am
      Jul 29, 2019
      RhyatttrailFlagstaff Loop (Observatory Mesa)Awesome ride from Craig's house!!!
      Aug 27, 2017 @ 12:18pm
      Aug 27, 2017

      Nearby Areas

      namedistance
      Fort Valley Trail System 7 15 44.2 km
      MEDL (Mount Elden Dry Lakes) 20 35 3 14.7 km
      Fort Tuthill 7 7 2 15 km
      Campbell Mesa Trail System 8 2 16.9 km
      Kelly Motorized Trail System 7 7 16.9 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike67 miles843 ft3 miles456 ft
      #3,455#1,72012323,689
      E-Bike1702 ft43 ft
      #4,552#1,0202038
      Horse56 miles843 ft3 miles456 ft
      #273#21610
      Hike67 miles843 ft3 miles456 ft
      #2,744#1,55823905
      Trail Running67 miles843 ft3 miles456 ft
      #2,750#1,55223918
      • By ponderosatreyTF Pro & contributors
      • Admins: FBO
      • #32517 - 2,064 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Observatory Mesa.
      You must login to download files.