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1,240 ft
Distance
-207 ft
Descent
00:01:14
Avg time
-207 ft
Altitude change
758 ft
Altitude min
965 ft
Altitude max
965 ft
Altitude start
758 ft
Altitude end
-16.7%
Grade
-29.2%
Grade max
-6.8%
Grade min
1,240 ft
Distance down
00:01:14
Avg time
D4W Details
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Activities
- Mountain Bike
- E-Bike
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Riding AreaDel Valle Regional Park
Livermore, California -
Difficulty Rating
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Voted DifficultyBlack Diamond (1 vote)
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Local Popularity95 in Mountain Biking [+]
- 95 in E-Biking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeDH, AM, XC
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DirectionDownhill OnlyPopular Direction Shown
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eBike AllowedYes up to Class 1
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TTFs on TrailBerm, Drop, Jump
No community description for D4W trail has been added yet!
AI Generated Description
D4W is a 1,240 ft popular blue difficulty singletrack trail located near Livermore California. This mountain bike primary trail can be used downhill only. It features berm, drop and jump. On average it takes 1 minutes to complete this trail.
Recent Activity on Trail
Past Week
- 2 rides
- 12 miles average
6 Months
- 44 rides
- 14 miles avg distance
All
- 179 rides
- Last: Jun 27, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
D4W 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
Trailforks scans ridelogs 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 ridelogs 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 rides = more kinetic energy = warmer colors.
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- popular
- less popular
- not popular
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Activity Recordings
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Missing Trails
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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 riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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Slope Aspect
Direction the slope faces
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Directions to d4w trailhead
(37.596620, -121.710810)
Videos
no videos have been added for D4W yet, add a video.
Routes with this trail
14 miles • 3,077 ft • 12 • Loop •
Hit all the worthwhile downhill black trails in one loop.
12 miles • 2,655 ft • 10 • Loop •
Hit the best trails Dell Valle has to offer.
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Nearby Trails
- Flubber 0 ft
- Pineapple Express 105 ft
- Fear Boner 548 ft
- Covid-19 748 ft
- D2s 778 ft
Del Valle Regional Park
- By sanfret
TRAILFORKS BTCEB NWTA & contributors - #543518 - 401 views
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Frequently Asked Questions About D4W
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Where is D4W located?
D4W is located in Del Valle Regional Park, Livermore, California, United States. It is part of the Del Valle Regional Park trail network. The trailhead is located at coordinates 37.59662, -121.71081.
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How hard is D4W?
D4W is rated as Blue difficulty. The average grade is 16.7%.
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What is the elevation gain for D4W?
The trail has 207 ft of elevation descent. The elevation ranges from 758 ft to 965 ft.
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Is D4W a point to point trail?
Yes, D4W is a point to point trail. The direction is Downhill Only. The trail type is singletrack.
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