Mcrrc Stone Mill 50 Mile Run
Updated
Saturday, November 7, 2026, first start 6:00 AM, in Montgomery Village (Stedwick Elementary School). Distances: 50 miles. Entry from $85.
- Date
- Saturday, November 7, 2026
- Start time
- 6:00 AM (earliest wave)
- Location
- Stedwick Elementary School, Montgomery Village, DC 20886
- Area
- Maryland Suburbs, Washington, DC
- Distances
- 50 miles
- Course
- Trail (dirt or single-track on at least part of the course)
- Price
- $85 plus the platform's processing fee
- Next price increase
- None published
- Registration
- Open. Opened May 1, online signup closes Saturday, November 7, 2026
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details.
Course and race notes
Welcome to the MCRRC Stone Mill 50 Mile Run! 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.
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.