Colorado · Half Marathon · 10K
Mt. Sneffels Half Marathon & 10K
Mt. Sneffels Half Marathon & 10K is a half marathon and 10K event held in Ouray, Colorado. Its next confirmed date is Saturday, August 21, 2027. About 500 runners take part across all distances.
- Race day
- August 21, 2027
- Location
- Ouray, CO
- Field size
- ~500 runners
Race details
- Date
- Saturday, August 21, 2027
- Location
- Ouray, Colorado
- Distances
- Half Marathon, 10K
- Field size
- About 500 runners
- Course
- Mostly dirt county roads, ~500 ft gain
- Registration
- raceroster.com
- Official website
- mtsneffelshalfmarathon.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: not announced
- Start time
- 7:00 AM MDT
- Course profile — Half Marathon
- Point-to-point course; Mostly trail, some road
- Course profile — 10K
- Point-to-point course; Mostly trail, some road
- Typical race-day weather
- about 47°F at the start, 90% humidity, 5 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026)
About the Mt. Sneffels Half Marathon & 10K
A scenic cupless point-to-point run on dirt roads from Ouray toward Ridgway benefiting the Mount Sneffels Education Foundation.
Rankings and notes
- Notes
- A scenic cupless point-to-point run on dirt roads from Ouray toward Ridgway benefiting the Mount Sneffels Education Foundation.
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Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Mt. Sneffels Half Marathon & 10K: common questions
- When is the Mt. Sneffels Half Marathon & 10K?
- The next confirmed date is Saturday, August 21, 2027.
- Where is the Mt. Sneffels Half Marathon & 10K held?
- In Ouray, Colorado.
- What distances does the Mt. Sneffels Half Marathon & 10K offer?
- Half Marathon and 10K.
- How many people run the Mt. Sneffels Half Marathon & 10K?
- About 500 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Mt. Sneffels Half Marathon & 10K?
- Registration is handled by the organiser at raceroster.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Mt. Sneffels Half Marathon & 10K?
- Registration status as last checked October 5, 2026: not announced.
- What time does the Mt. Sneffels Half Marathon & 10K start?
- 7:00 AM MDT.
- What is race-day weather usually like at the Mt. Sneffels Half Marathon & 10K?
- about 47°F at the start, 90% humidity, 5 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.