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1.8 miles
Distance
128 ft
Climb
-126 ft
Descent
00:17:58
Avg time
3 ft
Altitude change
142 ft
Altitude min
234 ft
Altitude max
228 ft
Altitude start
230 ft
Altitude end
-9.2%
Grade max
12.8%
Grade min
3,340 ft
Distance climb
3,845 ft
Distance down
2,480 ft
Distance flat
00:17:58
Avg time
Tilly Trail Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaRosaryville State Park
Rosaryville, Maryland -
Difficulty Rating
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Voted DifficultyBlue (1 vote)
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Local Popularity90 in Mountain Biking [+]
- 90 in E-Biking
- 90 in Trail Running
- 100 in Hiking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeAM, XC, Fat
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DirectionBoth Directions
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Climb DifficultyBlue
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Physical RatingModerate
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Trail VisibilitySometimes hard to follow
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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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TTFs on TrailBerm, Jump, Ladder Bridge
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Land OwnerMD DNR
This trail is one of the only noticeable turns off the Perimeter Trail.
It's a rougher, rowdier version of Perimeter.
You'll find a lot of downed trees that have been stacked to make obstacles, a few sad jumps, and some nice drops, a really nice ladder bridge and a few terrible skinnies. It seems like it also holds moisture more than Perimeter, so have fun on all those wet logs and roots…
If you're enjoying the flow of Perimeter, skip this trail. But if you need a little gnar in your ride, give it a rip.
While the jumps aren't remotely big, maybe take it easy on them first go, as they're in various states of disrepair.
Sad, sad jumps… :-(
This trail is single direction. If you ride it backwards, you're gonna have a bad time.
Access Info
I had to keep pulling up Strava until I was on top of it. Good luck…
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
- 2 rides
- 18 miles average
6 Months
- 111 rides
- 17 miles avg distance
All
- 344 rides
- Last: Sep 19, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Tilly Trail 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
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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.
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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.
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Directions to tilly-trail trailhead
(38.766640, -76.816110)
Photos
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Routes with this trail
★ 3.0 • 11 miles • 833 ft • 2 • Loop •
Clockwise loop of Rosaryville, including the blue trail section.
11 miles • 848 ft • 2 • Loop •
Counter clockwise loop of Rosaryville, including the blue trail section.
5 Reviews & Comments
ultrarunnergirl
No more sad jumps or other features - these no longer exist. Nothing too challenging but a pleasant little trail to ride. Section in the middle could use some love - a little overgrown.
max-chill
Definitely not a black. A few logovers from fallen trees. A few optional, natural drops. One moderate climb. So more spice than the Perimeter Loop, but nothing an intermediate rider can't handle.
DADventureTV
Not a black. A blue at most I guess. Was pretty sweet a few years ago when it was new. Features need some love now though. Adds about another 2 miles to perimeter loop and adds in a bit more tech and those features which, other than some roots in places, the Perimeter Trail is lacking. I recommend if you make it out here you do it.
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Nearby Trails
- Rsp Start 1 mile
- Perimeter Trail 1 mile
- Croome Trail 2 miles
- Charles Branch Trail 3 miles
- Overlook Spur 3 miles
Rosaryville State Park
- By lyophilization
& contributors - #98639 - 1,881 views
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