
#race
MCRRC Stone Mill 50 Mile Run
Nov 8, 2025
Starts at 6:00 AM
At a glance
Running
Ultramarathon
Starts at 6:00 AM
The MCRRC Stone Mill Run explores the scenic Seneca Greenway and Muddy Branch trails in Montgomery County, Maryland. Participants navigate forested terrain along a primarily single-track dirt trail, with minor stream crossings. While most of the route is well-drained, some areas can become muddy in wet conditions. Participants are encouraged to volunteer for six hours with a running club or similar organization, using the honor system for their commitment. The event highlights the region's natural beauty and promotes community involvement through volunteerism.
Registration types
Running
50 mi Trail running