3.2 miles
647 ft
-654 ft
Avg time

Lost Fork Loop Details

  • Difficulty rating
    Black Diamond
  • Trail type
  • Bike type
    AM, XC, Fat
  • Trail Usage
    Biking Primary
  • Direction
    Both Directions
  • Climb Difficulty
  • Physical rating
  • Season
    April - November
  • TTFs on trail
    Bridge, Drop, Rock Face
  • Global Ranking

A long lost trail that was recovered by the Great Falls Bicycle Club that is best ridden counter-clockwise. The first half is open prairie and has a few punchy climbs. The second half is the real fun filled with rock features, drops, and bridges.

Access Info

Start at the South Shore trailhead, ride down to Whitmore Ravine, then up red rock hill. At the top of hill go straight or go left, either way, keep heading east. After Ryan Dam, you will come to a fork in the trail. This is the beginning and end of Lost Fork Loop. Take the trail to the right up the hill and 1.5 miles later either stop at Box Elder Creek for a break or jump right into the technical section by taking the trail that turns towards the river.

Local Trail Association
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Great Falls Bicycle Club (www.greatfallsbicycleclub.org)
Please consider joining or donating to the local riding association to support trail development & maintenance.
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More Stats for Lost Fork Loop mountain bike trail
  • Altitude change
    -7 ft
  • Altitude min
    3,070 ft
  • Altitude max
    3,209 ft
  • Altitude start
    3,103 ft
  • Altitude end
    3,096 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    1.5 miles
  • Distance down
    1.5 miles
  • Distance flat
    1,370 ft
  • Avg time
  • view trail stats
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