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5,213 ft
Distance
-531 ft
Descent
00:07:38
Avg time
-539 ft
Altitude change
876 ft
Altitude min
1,415 ft
Altitude max
1,415 ft
Altitude start
876 ft
Altitude end
-10.3%
Grade
-42.4%
Grade max
5,089 ft
Distance down
125 ft
Distance flat
00:07:38
Avg time
Black Widow Details
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Activities
- Mountain Bike
- E-Bike
- Adaptive Bike
- Hike
- Trail Running
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Riding AreaBlack Mountain
San Diego, California -
Difficulty Rating
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Voted DifficultyBlack Diamond (19 votes)
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Local Popularity90 in Mountain Biking [+]
- 95 in E-Biking
- 55 in Trail Running
- 55 in Hiking
- 100 in Adaptive Biking
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Global Ranking#27740 in Mountain Biking [+]
- #76450 in E-Biking
- #129866 in Trail Running
- #55447 in Hiking
- #347 in Adaptive Biking
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State Ranking#748 in Mountain Biking · California [+]
- #1,569 in E-Biking
- #6,462 in Trail Running
- #3,237 in Hiking
- #19 in Adaptive Biking
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Hiking SAC ScaleT2 Mountain Hiking
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Trail TypeSingletrack
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Bike TypeDH, AM, Adaptive MTB
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DirectionDownhill PrimaryPopular Direction Shown
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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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TTFs on TrailBerm, Drop, Jump, Rock Garden
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Land OwnerCity of San Diego
SDMBA worked with the city of San Diego to create a fun trail that is also more sustainable than the old scars that were there before. It has berm features with some with paver bricks added for erosion control. Also has some rock gardens and small rolly-jump features.
Trail is complete and ride-able. While not officially a downhill directional trail, be aware that most riders take the fire road up and descend on Black Widow. Ride with care in case anyone is coming uphill and avoid riding in wet conditions.
source: SDMBA Black Widow Project Page
Access Info
Completed and open - June 2020.
Adaptive Bike Info
aMTB Blue Rating: Intermediate features and steeper terrain.
Suspension and clearance highly recommended. There is one rock garden and traversing sections that may require assistance.
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
- 4 rides
- 7 miles average
6 Months
- 96 rides
- 10 miles avg distance
All
- 1,017 rides
- Last: Oct 26, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Black Widow 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)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
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
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
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.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
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- popular
- less popular
- not popular
ATV/ORV/OHV Filter
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Activity Recordings
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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 black-widow trailhead
(32.979790, -117.116490)
Photos
24 more »
Videos
24 more »
mtb
16:04 |
203 |
Jul 26, 2026 , San Diego
mtb
5:42 |
196 |
Sep 4, 2025 , San Diego
mtb
16:35 |
377 |
Mar 22, 2025 , San Diego
Technical Trail Features (TTF)
- Matt's Rock Garden
Rock Garden
Routes with this trail
★ 5.0 • 15 miles • 2,313 ft • 19 • Loop •
No, this isn't the Tour de France. However, you might wonder if perhaps you've made a wrong turn and...
★ 4.5 • 9 miles • 1,400 ft • 29 • Loop •
A black mountain route that includes fun trails like Santa Luz/Artichokes, Miner's Loop downhill and Lilac...
★ 5.0 • 14 miles • 1,996 ft • 36 • Loop •
MountainBikeBill's favorite long route at at Black Mountain. There is plenty of climbing for the distance...
17 Reviews & Comments
mountainman23
A little disappointing considering you can see effort was put into building this trail. There's not really much flow except towards the bottom. Some of the tech sections are fun but some just completely ruin the flow and are out of place. Some of the berms are ok but most of the berms are not built well which is definitely the biggest weakness of this trail. Considering how long the climb up is its just not worth it.
BenLow2019
Pavers have preserved the corners and made it faster to the bottom.
coachzed
This trail is has become quite a lot more technical than it was a year or two ago. Several rock gardens have become chunkier and more challenging and don’t have bypasses or b lines. I’d rate the trail as black given the unavoidable TTFs. It’s certainly harder than Miner’s, which is rated black.
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& contributors - #62562 - 18,863 views
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