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5.2 miles
Distance
1,043 ft
Climb
-136 ft
Descent
01:10:20
Avg time
907 ft
Altitude change
5,194 ft
Altitude min
6,101 ft
Altitude max
5,194 ft
Altitude start
6,102 ft
Altitude end
3.3%
Grade
-21.2%
Grade max
23.8%
Grade min
4 miles
Distance climb
4,429 ft
Distance down
2,421 ft
Distance flat
01:10:20
Avg time
Third Fork Details
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Activities
- Mountain Bike
- E-Bike
- Horse
- Hike
- Trail Running
- Dirtbike/Moto
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Riding AreaMagic Mountain
Twin Falls, Idaho -
Ref Number#004
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AKA7004
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Difficulty Rating
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Local Popularity85 in Mountain Biking [+]
- 5 in E-Biking
- 5 in Trail Running
- 5 in Hiking
- 100 in Dirtbiking
- 5 in Horseback
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Global Ranking#127309 in Mountain Biking [+]
- #224641 in E-Biking
- #331500 in Trail Running
- #318801 in Hiking
- #4228 in Dirtbiking
- #21457 in Horseback
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State Ranking#1,117 in Mountain Biking · Idaho [+]
- #1,370 in E-Biking
- #2,554 in Trail Running
- #2,667 in Hiking
- #244 in Dirtbiking
- #715 in Horseback
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Trail TypeSingletrack
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Bike TypeAM
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DirectionBoth DirectionsPopular In Reverse
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Climb DifficultyBlack Diamond
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Physical RatingHard
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Trail VisibilityAlways easy to follow
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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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Land OwnerUSFS
No community description for Third Fork trail has been added yet!
AI Generated Description
Third Fork is a 5 mile popular black diamond difficulty singletrack trail located near Twin Falls Idaho. It has bridges. This multi-use trail can be used both directions and has a hard overall physical rating with a 1,043 ft black diamond climb. Trail visibility is always easy to follow. On average it takes 1 hour10 minutes to complete this trail.
Trail Supporters
USFSLand Manager
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 2 rides
- 24 miles avg distance
All
- 14 rides
- Last: Aug 28, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Third Fork Trail Reports
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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)
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The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
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- < 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
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Trail Popularity ?
Trailforks scans activity logs 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.
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Activity Recordings
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Directions to third-fork trailhead
(42.252020, -114.247330)
Photos
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Trail Products
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Idaho's Mountain Bike License PlateTrail Pass
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Nearby Trails
- Third Fork Trailhead 909 ft
- Wahlstrom Hollow 1,230 ft
- Second Fork 1 mile
- East Line Spring West 2 miles
- Sagehen 3 miles
- By jandashetler
& contributors - #54390 - 2,655 views
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