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4,498 ft
Distance
132 ft
Climb
-140 ft
Descent
00:05:47
Avg time
-8 ft
Altitude change
677 ft
Altitude min
764 ft
Altitude max
748 ft
Altitude start
738 ft
Altitude end
-0.2%
Grade
-25.2%
Grade max
25.3%
Grade min
2,001 ft
Distance climb
1,650 ft
Distance down
843 ft
Distance flat
00:05:47
Avg time
Reactor Trail Details
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Activities
- Mountain Bike
- Hike
- Trail Running
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Riding AreaObservatory Hill
Charlottesville, Virginia -
Difficulty Rating
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Voted DifficultyBlue (2 votes)
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Local Popularity85 in Mountain Biking [+]
- 65 in Trail Running
- 75 in Hiking
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Global Ranking
-
State Ranking
-
Trail TypeSingletrack
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DirectionBoth Directions
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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
Reworked at the end of 2018/early 2019 the new Reactor Trail connects the Upper Perimeter trail over to the UVA Aerospace building, plunging down by the Reactor. Each direction starts with a fast flowy descent that hasn't worn down to the rock like most other trails on Ohill. Coming south to the split in the trail allows you to take a left down to a steep and challenging rock garden close to the Reactor building. The high line has some rollers and should always be taken headed north as the rock garden cannot be ridden up. A big ride under is on the other side of this gulley. The end of the trail is a solid climb on either end, with the southern option giving you the option to continue up the powerlines all the way to the top of Ohill.
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.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 33 rides
- 11 miles avg distance
All
- 298 rides
- Last: Oct 14, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Reactor Trail 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 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%
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- < 50%
- bi-directional trail
- no data
Trail Last Used
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- < 1 week
- < 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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BC Backroad Status
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Directions to reactor-trail trailhead
(38.035110, -78.523620)
Photos
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Videos
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Routes with this trail
★ 3.0 • 2 miles • 219 ft • 2 •
This will be the short-track XC course for Enduro'Hill on September 5th.
4 miles • 642 ft • 3 • Loop •
Just a loop around OHill, because I get turned around every time. Loose, rocky, rooty, and fun.
2 miles • 487 ft • 6 • Loop • Race •
A slight tweak on the usual race course connecting straight down the hill to the finish line instead of...
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Nearby Trails
- Edgemont Connector 0 ft
- Junkyard Switchbacks 676 ft
- O-hill Long Downhill 712 ft
- Wayside 755 ft
- Power Line 758 ft
- By brettn13
CAMBC & contributors - #119983 - 1,585 views
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