Stone Mill 50 Mile2026
07.11.2026Montgomery Village (United States)
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2 courses · 80.5–83 km · up to 1’219 m D+
2 courses
80.5km
1’219 m D+
953 m D-
avg 2%
Stone Mill 50 Mile07.11.
83km
1’170 m D+
avg 1%
Stone Mill 5007.11.
Course analysis
Stone Mill 50 Mile80.5 km1’219 m D+
93effort kmⓘ80.5 km on the map · feels like 93 km
- D+
- 1’219 m
- D−
- 953 m
- Max alt.
- 135 m
- Steepest
- 3%
Segments
Elevation profile: Stone Mill 50 Mile
56 m — 135 m
The race
This 50 mile trail run showcases the beauty of both the Seneca Greenway and Muddy Branch trails in Montgomery County, Maryland. The course traverses forested, rolling terrain on a primarily single track, dirt trail. There are small stream crossings. Most of the course drains well, but parts can be muddy in wet weather.
Where to stay
Find a place to stay near Montgomery Village for the race.
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