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407 ft
Distance
12 ft
Climb
-20 ft
Descent
00:01:52
Avg time
-9 ft
Altitude change
28 ft
Altitude min
49 ft
Altitude max
37 ft
Altitude start
30 ft
Altitude end
-2.3%
Grade
-14.9%
Grade max
14.8%
Grade min
112 ft
Distance climb
187 ft
Distance down
108 ft
Distance flat
00:01:52
Avg time
Rock-dumb Details
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Activities
- Mountain Bike
- E-Bike
-
Riding AreaUtrecht
Vaalserberg -
Difficulty Rating
-
Local Popularity15 in Mountain Biking [+]
- 100 in E-Biking
-
Global Ranking
-
National Ranking
-
Trail TypeSingletrack
-
Bike TypeDH, AM, XC
-
DirectionDownhill Only[+]
- Downhill Only for E-Biking
-
Trail VisibilityAlways easy to follow
-
eBike AllowedYes up to Class 1
-
TTFs on TrailDrop, Rock Garden
Small drops and rockgarden
Local Trail Association
-
-
Please consider joining or donating to the local trail association to support
trail development & maintenance.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 12 rides
- 9 miles avg distance
All
- 123 rides
- Last: Oct 7, 2026
Rock-dumb 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%
- > 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
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
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Missing Trails
Most Popular
Least Popular
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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Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
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Only show trails with no bike usage.
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Directions to rockdumb trailhead
(52.036870, 5.061960)
Photos
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