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3.0 miles
Distance
406 ft
Climb
-403 ft
Descent
00:26:19
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
00:26:19
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
- 75 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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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
- 9 miles average
6 Months
- 9 rides
- 10 miles avg distance
All
- 117 rides
- Last: Jun 5, 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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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 riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
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- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
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Directions to stem-cell trailhead
(45.683000, -118.858390)
Photos
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Routes with this trail
★ 5.0 • 10 miles • 1,271 ft • 6 • Loop •
James loop to Qit Qit, circle up to back to James loop, turn right at James loop finish down (jumps ahead,...
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Nearby Trails
- Zig Zag 167 ft
- Tower Road 771 ft
- Rewind / Ricky Bobby Uphill 883 ft
- Let'er Send 1,227 ft
- Toll Bridge 2,762 ft
Pendleton Adventure Trails Recreational Area
- By level4designs & contributors
- #111496 - 2,485 views
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Frequently Asked Questions About Stem Cell
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Where is Stem Cell located?
Stem Cell is located in Pendleton Adventure Trails Recreational Area, Pendleton, Oregon, United States. It is part of the Pendleton Adventure Trails Recreational Area trail network. The trailhead is located at coordinates 45.683, -118.85839.
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How hard is Stem Cell?
Stem Cell is rated as Blue difficulty. The climb difficulty is rated Blue.
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What is the elevation gain for Stem Cell?
Stem Cell has 406 ft of elevation gain. The trail has 403 ft of elevation descent. The elevation ranges from 1,172 ft to 1,523 ft.
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Is Stem Cell a point to point trail?
Yes, Stem Cell is a point to point trail. The direction is One Direction. The trail type is singletrack.
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