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4,839 ft
Distance
9 ft
Climb
-265 ft
Descent
00:05:09
Avg time
-256 ft
Altitude change
858 ft
Altitude min
1,115 ft
Altitude max
1,114 ft
Altitude start
858 ft
Altitude end
-5.285%
Grade
-18.936%
Grade max
6.812%
Grade min
298 ft
Distance climb
4,289 ft
Distance down
253 ft
Distance flat
00:05:09
Avg time
Černá díra Details
-
Activities
- Mountain Bike
- Hike
- Trail Running
-
Riding AreaKokostezky
Mělník -
Difficulty Rating
-
Local Popularity90 in Mountain Biking [+]
- 5 in Trail Running
- 5 in Hiking
-
Global Ranking
-
National Ranking
-
Trail TypeSingletrack
-
Bike TypeAM, XC
-
DirectionDownhill Primary
-
Climb DifficultyGreen
BE AWARE OF PEDESTRIANS AND HORSE RIDERS DO NOT RIDE OUTSIDE THE TRAILS!
This trail is unsanctioned.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 5 rides
- 15 miles avg distance
All
- 11 rides
- Last: Aug 20, 2026
Černá díra 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)
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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
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US Cell Coverage
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Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
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A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
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
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
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Directions to erna-dira trailhead
(50.459661, 14.573219)
Photos
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Videos
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- Klášterka 1,952 ft
- #78608 - 1,276 views
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