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Seneca Ridge Trail at Black Rock Mill
4.6 ★★★★★ 243 Google reviews · Running trail in Darnestown, Maryland · Open 24 hours
Runner's snapshot
- Surface
- Not reported
- Distance
- Not reported
- Shape
- Not reported
- Shade
- Not reported
- Access
- Open 24 hours
Confirmed from Seneca Ridge Trail at Black Rock Mill's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.
Forest and stream offering biking and hiking trails, plus a preserved mill building.
What runners say about Seneca Ridge Trail at Black Rock Mill
“The scenery is gorgeous, lots of shade, and great trail for pets and people of all athletic abilities.”
“If you are looking for a quiet, beautiful wooded trail this is one to check out.”
Seneca ridge trail offers beautiful east coast creek scenery and plenty of elevation gain! Great for hiking, trail running, or mountain biking! Be sure to share the trail! This is a moderate to heavily trafficked trail and can be especially crowded on nice weekend days.
I absolutely love Black Rock Mill and Seneca Ridge Trail. The scenery is gorgeous, lots of shade, and great trail for pets and people of all athletic abilities. Stop by the water and enjoy the sounds of nature.
If you are looking for a quiet, beautiful wooded trail this is one to check out. You will quickly encounter the historical mill building. It is only partially preserved but there is excellent signage to explain the working of the mill.
I mountain-biked this trail in the late fall, and it was fantastic! It goes up and down, with nothing to hairy. The skull shrine is definitely worth pausing to admire.
Trail conditions & character
“The scenery is gorgeous, lots of shade, and great trail for pets and people of all athletic abilities.”
“If you are looking for a quiet, beautiful wooded trail this is one to check out.”
Plan your run at Seneca Ridge Trail at Black Rock Mill
The practical stuff
- AccessOpen 24 hours — no gate to beat, so a 5am or a 10pm run both work
- DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
- ShadeNot reported. Assume some of it is exposed and carry water in summer.
- At the trailheadparking — reported by runners
Hours
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
Running trails near Darnestown
Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.
Seneca Ridge Trail at Riffle Ford Road
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Clopper Lake
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Inspiration Lake Hiking Trail
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