7.9 miles
Distance
235 ft
Climb
-2,775 ft
Descent
01:20:03
Avg time

Porcupine Creek Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Horse
    • Hike
    • Trail Running
    • Dirtbike/Moto
  • Riding Area
    Southern Gallatin Range
    Big Sky, Montana
  • Ref Number
    #34
  • Difficulty Rating
    Blue rate
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC
  • Direction
    Both Directions
    Popular direction shown
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Hard
  • Trail Visibility
    Always easy to follow
  • Season
    July through mid October
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1
  • TTFs on Trail
    Rock Garden
  • Global Ranking
    #63033 in Mountain Biking [+]
    • #36618 in E-Biking
    • #1271 in Dirtbiking
  • Local Popularity
    65 in Mountain Biking [+]
    • 5 in E-Biking
    • 55 in Trail Running
    • 70 in Hiking
    • 100 in Dirtbiking
    • 5 in Horseback

An old school Big Sky classic. Hour long descent from Buffalo Horn/Ramshorn that is usually done with a shuttle from Ramshorn Creek/320 Ranch. Pretty rocky and rooty overall, interspersed with several short climbs, so the “flow” is questionable. Intermediate riders may get beat up a little. Riding this as an out-and-back is certainly an option, go all the way, or not. Not likely to be passable before July, see note below for official closure dates. Conditions can be widely variable and dependent on moto use/overuse, see reports regarding trees and mud holes. North end of the trail is on state land, the rest is on USFS - Custer Gallatin National Forest.

Disclaimer

Closed to stock and bikes through June 15th. Open to motorcycles and e-bikes is July 16th - Sept 4.

Local Trail Association
Traditionally Indigenous Territory
More Stats for Porcupine Creek multi-use trail trail
  • Altitude change
    -2,540 ft
  • Altitude min
    6,239 ft
  • Altitude max
    8,779 ft
  • Altitude start
    8,779 ft
  • Altitude end
    6,240 ft
  • Grade
    -6.1%
  • Grade max
    -38.6%
  • Grade min
    40%
  • Distance climb
    4,721 ft
  • Distance down
    7 miles
  • Distance flat
    2,644 ft
  • Avg time
    01:20:03
  • Avg reverse time
    02:14:11
  • view trail stats
Status:
on Mar 22, 2025
Variable
Avg: 3.86 (2 votes)
Your vote: 0

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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
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  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
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      Directions to porcupine-creek trailhead (45.167120, -111.117950)
      update trails status or condition

      Porcupine Creek Trail Reports

      statusdatedescription
      Mar 22, 2025 @ 11:45am
      Mar 22, 2025
      Jul 23, 2024 @ 7:02pm
      Jul 23, 2024
      		 About 8 mud bogs requiring dismount, and 8 or 9 stream crossings about half of which were unrideable by me today. The trail is quite haggard,...
      Sep 6, 2023 @ 6:10pm
      Sep 6, 2023
      		 Extremely muddy from recent rain, plus innumerable mud holes that won’t dry up this year. Do not recommend.
      Aug 3, 2023 @ 5:34pm
      Aug 3, 2023
      		 Great shape
      Oct 16, 2022 @ 10:21am
      Oct 16, 2022
      		 One tree down. Otherwise in good shape. Big ups to the volunteers who recently cleared the trail (aside from the one new downed tree)!
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 0 rides
      •  
      6 Months
      • 0 rides
      •  
      All
      • 14 rides
      • Last: Oct 6, 2024

      Photos

      no photos have been added for Porcupine Creek yet, add a photo.

      Routes with this trail

      titledistance
      Ramshorn to Porcupine16 miles
      Monday ride25 miles
      Buffalohorn to Porcupine16 miles

      Trail Products

      2 Reviews & Comments


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      Videos

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      Buffalo Horn to Porcupine Creek - Big Sky, MT...
      10:39 | 359 | Dec 1, 2021 , Big Sky

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