The Stone Mill 50 Mile is a 50 mile trail run on the Seneca Greenway and Muddy Branch trails in Montgomery County Md. The course traverses forested, rolling terrain. The course is primarily on single track dirt. There are small stream crossings. Most of the course drains well, but parts can be muddy in wet weather.

Upcoming Races

Nov 9 2019
50 Miles
Lollipop Course
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Results

50 Miles View course top times

Date Finishers Top Result Top Result (F)
11/17/18 244 7:15:00 9:03:14
11/11/17 252 7:21:41 8:25:02
11/12/16 211 7:19:13 8:57:15
11/14/15 282 7:04:13 8:05:30
11/14/14 261 6:49:16 8:25:41
11/16/13 251 7:06:35 7:46:19
11/17/12 259 7:25:13 8:16:31
11/19/11 178 8:02:22 9:41:26
11/20/10 117 7:34:15 8:38:32

56 Miles View course top times

Date Finishers Top Result Top Result (F)
11/20/10 6 8:38:24
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.

More events by Farm Park Challenge

Frozen Gnome
  • Jan 11, 2020
  • Crystal Lake, IL
50 KM