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3.0 miles
Distance
406 ft
Climb
-403 ft
Descent
00:24:34
Avg time
2 ft
Altitude change
1,172 ft
Altitude min
1,523 ft
Altitude max
1,181 ft
Altitude start
1,181 ft
Altitude end
-23%
Grade max
30.9%
Grade min
1 mile
Distance climb
1 mile
Distance down
4,577 ft
Distance flat
00:24:34
Avg time
Stem Cell Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaPendleton Adventure Trails Recreational Area
Pendleton, Oregon -
Difficulty Rating
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Local Popularity80 in Mountain Biking [+]
- 85 in E-Biking
- 5 in Trail Running
- 85 in Hiking
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Global Ranking
-
State Ranking
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Trail TypeSingletrack
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Bike TypeAM, XC
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DirectionOne DirectionPopular Direction Shown
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Climb DifficultyBlue
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Dogs AllowedYes
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eBike Allowed
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Land OwnerCity of Pendleton
This trail starts and ends at the bottom of the canyon when following Tim's Trail or Tower Trail to the bottom. The normal loop is done clockwise, but can be ridden in either direction. If riding the trail clockwise, it is 2 miles to the top corner, and 1 mile of downhill.
From the start, you simply head south west toward I-84 and will begin a series of switchbacks and turns toward the top. Once you crest the steep hillside, you have a small reprieve downhill as you head west and then more switchbacks to the very top corner. Once you make the corner, you will turn back East and head down some fun switchbacks and over a drop back toward the bottom.
You can ride out Tim's trail as it will lead you back to the top parking lot.
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
- 1 rides
- 14 miles average
6 Months
- 15 rides
- 10 miles avg distance
All
- 130 rides
- Last: Oct 24, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Stem Cell Trail Reports
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3D
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
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 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
Contribute Details
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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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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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Slope Aspect
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Directions to stem-cell trailhead
(45.683000, -118.858390)
Photos
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Videos
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Routes with this trail
★ 5.0 • 10 miles • 1,271 ft • 6 • Loop •
James loop to Qit Qit, circle up Zig Zag to Tim's trail back to James loop, turn right at James loop...
bizango-x
Nice xc loop. Steady grade for a the climb with a good reprieve after the turns (a few steeper bits, but not bad), then fast turns on the way down. Optional jump at the bottom (I opted not to!).
JJPF
This is a fun climbing trail that allows you to get a little cardio in with the fun reward of the decent complete with sweeping turns and a nice big drop. This trail is a classic good way to just get lap in.
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Nearby Trails
- Zig Zag 105 ft
- Tower Road 479 ft
- Rewind / Ricky Bobby Uphill 548 ft
- Let'er Send 761 ft
- Toll Bridge 1,716 ft
Pendleton Adventure Trails Recreational Area
- By level4designs & contributors
- #111496 - 2,729 views
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