Stone Mill 50 Mile Run

Gaithersburg, United States • 8 Nov 2025

The MCRRC Stone Mill 50 Mile Run is an ultramarathon event held in Montgomery Village, Maryland. This challenging 50-mile race offers runners a unique endurance experience on a course designed to test stamina and determination. The event is organized by the Montgomery County Road Runners Club (MCRRC) and features well-planned logistics including aid stations and support for participants.

The race atmosphere is supportive and community-oriented, attracting ultrarunners seeking a scenic yet demanding course. Additional details such as packet pickup, spectator tips, and accommodation options are provided to enhance the race day experience. The event typically takes place in early November. Visit the organization's website for the most recent information.

Race information

UTMB 50K
50 mi
50 Mile
Visit the organization's website for the most recent information.
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