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1.9 miles
Distance
573 ft
Climb
-21 ft
Descent
00:23:26
Avg time
552 ft
Altitude change
4,344 ft
Altitude min
4,896 ft
Altitude max
4,344 ft
Altitude start
4,895 ft
Altitude end
5.6%
Grade
-11.4%
Grade max
24.1%
Grade min
2 miles
Distance climb
860 ft
Distance down
686 ft
Distance flat
00:23:26
Avg time
Backdoor Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaIndian Springs
Twin Falls, Idaho -
Difficulty Rating
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Local Popularity85 in Mountain Biking [+]
- 90 in E-Biking
- 90 in Trail Running
- 5 in Hiking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeAM, XC
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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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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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Ride in RainYes
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Land OwnerBLM
This is a tough climb or a fast technical descent. The theme of this trail is very rocky. The top two miles traverse a constant supply of rocks with lots of twists and turns and a few small (6-8") ledges. As you start to see more dirt and leave the rocks behind, it will get a little steeper downhill prior to meeting up with Lower Sugar Loaf.
Trail Supporters
BLMLand 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
- 4 rides
- 15 miles avg distance
All
- 55 rides
- Last: Jun 13, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Backdoor 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
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- > 6 months
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- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
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Directions to backdoor trailhead
(42.405190, -114.365270)
Photos
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Trail Products
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Idaho's Mountain Bike License PlateTrail Pass
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Nearby Trails
- Bd Fenceline 2,871 ft
- Sidewinder 3,638 ft
- Swami 4,885 ft
- Sweet N' Low 4,944 ft
- Indian Springs Road 1 mile
- By chuktA
TRAILFORKS NFTA & contributors - #23936 - 2,162 views
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Frequently Asked Questions About Backdoor
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Where is Backdoor located?
Backdoor is located in Indian Springs, Twin Falls, Idaho, United States. It is part of the Indian Springs trail network. The trailhead is located at coordinates 42.40519, -114.36527.
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How hard is Backdoor?
Backdoor is rated as Black Diamond difficulty. The physical rating is Hard. The average grade is 5.6%. The climb difficulty is rated Black Diamond.
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What is the elevation gain for Backdoor?
Backdoor has 573 ft of elevation gain. The trail has 21 ft of elevation descent. The elevation ranges from 4,344 ft to 4,896 ft.
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Is Backdoor a point to point trail?
Backdoor is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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