5,236 ft
Distance
3 ft
Climb
-675 ft
Descent
00:08:23
Avg time
Supporters, Builders, Maintainers & Land Managers of Boundary Line Trail
Boundary Line Details
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Activities
- Mountain Bike
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Riding AreaFrederick Watershed
Frederick, Maryland -
Difficulty Rating
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Voted DifficultyBlack Diamond (4 votes)
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Trail TypeSingletrack
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Bike TypeAM, DJ
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DirectionDownhill OnlyPopular direction shown
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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eBike Allowed
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TTFs on TrailBerm, Jump, Gap Jump
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Global Ranking#3496 in Mountain Biking
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Local Popularity100 in Mountain Biking
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Year Opened2019
Machine built flow trail with multiple berms, gaps and tables. Part of a Recreation Trails Program grant project. Closed when conditions are soft or wet.
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
More Stats for Boundary Line mountain bike trail trail
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Altitude change-672 ft
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Altitude min814 ft
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Altitude max1,486 ft
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Altitude start1,486 ft
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Altitude end814 ft
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Grade-12.8%
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Grade max-40.3%
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Grade min1.8%
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Distance climb197 ft
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Distance down4,970 ft
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Distance flat72 ft
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Avg time00:08:23
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Avg reverse time00:34:34
- view trail stats
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Inadequate
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users ridelogs 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 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
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
Radar Time
x
Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
- mountain biking recent
- mountain biking (>6 month)
- hiking (1 year)
- moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
- Downhill Ski
- Backcountry Ski
- Nordic Ski
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
Only show trails with NO bikes.
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Directions to boundary-line-261932 trailhead
(39.499100, -77.483030)
update trails status or condition
Boundary Line Trail Reports
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Recent Ridelog Activity on Trail
Past Week
- 16 rides
- 11 miles avg distance
6 Months
- 279 rides
- 12 miles avg distance
All
- 1,759 rides
Photos
more »
Routes with this trail
more »
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+ 2
Evantg123
(Apr 22, 2020 at 15:15)

What an incredible masterpiece of a downhill trail. It has it all. Thanks to all involved in building this and all the new FWS trails!
[Reply]
jsolomon214
(May 15, 2020 at 16:26)
The most bike park-esque trail in the shed. So much fun.
[Reply]


Blue Square flow trail most of the way but ends with a hard, steep black diamond rock garden. Much harder than three saws. Such a fun trail!
[Reply]


Starts off slow and then blasts down with nice berms and jumps all the way down - awesome trail!
[Reply]
Videos
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Nearby Trails
- Three Saws 148 ft
- Stoner Road 148 ft
- Fun House 171 ft
- The Nose 827 ft
- Mouse Trap 938 ft
Frederick Watershed
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- By joemtber MORE Frederick & contributors
- #261932 - 3,386 views
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