Stinking Springs

Total Miles6.8
Technical Rating
5Moderate
Best TimeSpring, Summer
Trail Type50" Trail
Accessible By
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Trail Overview

Stinking Springs is an engaging 6.8-mile trail in the Big Hole Mountains of Eastern Idaho, offering scenic climbs and spectacular views of the Snake River Plain for intermediate offroaders. This route serves as a fun connector that climbs from 5,098 feet up to 6,808 feet, bypassing river road traffic to access flowy doubletrack and singletrack trails further in the range. The first half of the route features a two-stage climb beginning with a series of dirt switchbacks and minor jumps, eventually transitioning into more challenging rocky steps and ledges. Driving or riding this trail in the late spring or early summer rewards visitors with blooming wildflowers and clear vistas of the South Fork of the Snake River. Rated a moderate 5 out of 10, the trail requires a high-clearance four-wheel-drive vehicle, ATVs, SxSs, or off-road motorcycles to navigate the varying terrain. While the western ascent is relatively manageable with careful line choice over the rocky ledges, the eastern descent down Kelly Mountain becomes significantly more technical, featuring steep slopes covered in loose shale. Novice drivers or those looking to avoid loose rock can turn around at the summit and backtrack along the fence line. Access is best from the west trailhead, which features a spacious dirt parking lot located just past Heise off Kelly Canyon Road.

Photos of Stinking Springs

Difficulty

The west side of this trail is fairly easy with some switchbacks and some steps that will force you to choose a good line. The back side (east side) of Kelly Mountain is very rocky with lots of shale and steep descents. If you are looking to avoid looser rock or are riding with a novice, turn around at this point when you summit and start riding along the fence line.

History

Stinking Springs is historically recognized among local riders as the first high-elevation trail to clear of winter snow and become accessible in Eastern Idaho each spring.

Technical Rating

5

Status Reports

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Angel C
Jul 12, 2026
Open
NormalDusty
Fun Trail
Isaac Shaw
Jul 03, 2026
Open
Normal
Robert M
Aug 27, 2025
Open
Muddy/Wet
It had rained this day, and was on/off sprinkles while riding. Trail was a tad muddy with puddles in places, but was fantastic for traction and ZERO dust.
Harrison Sanders
Jul 19, 2025
Open
Normal
Fair easy with a few technical spots. There is a dedicated ramp at the beginning of the trail closest to Heise hot springs. Great intermediate trail.
brooks peterson
Jul 19, 2025
Open
DustyRough/Deteriorated
The trail was easy until you started down and hit the downhill rock slide you couldn’t ride you had to walk the bike down. You could have taken an illegal trail to make it easier
Shane Major
Jun 08, 2025
Open
NormalDustyRough/DeterioratedWashboard
Cattle crossing, dusty but overall a great ride
Stephen Jensen
Oct 22, 2024
Open
Muddy/WetRough/Deteriorated
I ran it west to east, definitely not a blue rated road. After the first 5-10 minutes of nice banked flowing trail there are steep switchbacks with short rock ledges and loose rock. Once you reach the summit and continue on it gets very steep for about 700-800 yards of shale, loose rock, ledges etc.
Mike Barry
Oct 20, 2024
2024 Husqvarna FE350S
Open
NormalRough/Deteriorated
If you are going West to East, be on the lookout for a split in the trail right before the steep loose rock downhill section. Take the trail on the left and you’ll have a much more enjoyable time down. OnX shows it as non motorized but I saw no signage and lots of evidence of long term motorized use.
Jim Byington
Sep 21, 2024
Open
Rough/Deteriorated
Francisco Ocampo
Aug 25, 2024
Open
Rough/Deteriorated
Carter Rarick
Jun 15, 2024
Open
DustyRough/Deteriorated
Really fun trail! The rocks toward the top are pretty intense to go over and we almost biffed it a couple times. Be careful on your way down from the top!
Daniel Larson
Jun 19, 2023
Open
Muddy/Wet
Carson Lilya
Jun 01, 2023
Open
Muddy/Wet
Brody Eaton
Apr 22, 2023
Temporarily Closed
Seasonal Closure
Jay L.
Mar 27, 2023
Seasonally Closed

Stinking Springs Trail can be accessed by the following ride types:

  • Single Track
  • 50 Inch

Access Description

The trail is accessible primarily from late spring through fall, depending on snowpack. Visitors should ensure their vehicles have appropriate Idaho OHV registrations and check local US Forest Service or BLM guidelines for active seasonal closures or motorized restrictions.

Stinking Springs Map

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