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5.2 miles
Distance
1,043 ft
Climb
-136 ft
Descent
01:41:54
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
01:41:54
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 Popularity80 in Mountain Biking [+]
- 5 in E-Biking
- 95 in Trail Running
- 100 in Hiking
- 5 in Dirtbiking
- 5 in Horseback
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Global Ranking#85635 in Mountain Biking [+]
- #39132 in E-Biking
- #31433 in Trail Running
- #33912 in Hiking
- #3611 in Dirtbiking
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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. 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 hour41 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
- 3 rides
- 30 miles avg distance
All
- 13 rides
- Last: Jun 7, 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
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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.
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- > 80%
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- bi-directional trail
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Trail Last Ridden
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- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
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- 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.
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Directions to third-fork trailhead
(42.252020, -114.247330)
Photos
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Nearby Trails
- Third Fork Trailhead 1,463 ft
- Wahlstrom Hollow 1,978 ft
- Second Fork 2 miles
- East Line Spring West 4 miles
- Sagehen 4 miles
- By jandashetler
& contributors - #54390 - 2,380 views
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Frequently Asked Questions About Third Fork
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Where is Third Fork located?
Third Fork is located in Magic Mountain, Twin Falls, Idaho, United States. It is part of the Magic Mountain trail network. The trailhead is located at coordinates 42.25202, -114.24733.
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How hard is Third Fork?
Third Fork is rated as Black Diamond difficulty. The physical rating is Hard. The average grade is 3.3%. The climb difficulty is rated Black Diamond.
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What is the elevation gain for Third Fork?
Third Fork has 1,043 ft of elevation gain. The trail has 136 ft of elevation descent. The elevation ranges from 5,194 ft to 6,101 ft.
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Is Third Fork a point to point trail?
Third Fork is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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