Now in its 12th year, the festival pairs crisp fall mountain air with runnable, scenic courses ranging from beginner-friendly 5K to an ultra 50K. Runners can also stack races via the Moosehead and Baby Moose Challenges, tackling multiple events in one day. The event hub sits at YMCA of the Rockies – Snow Mountain Ranch (1101 County Rd 53, Granby, CO), with all distances set on dirt trails and service roads amid golden aspens and Continental Divide vistas. Mark your calendar for September 13, 2025—a single-day celebration of Colorado trail running.
Race Date:
13 September, 2025
The 50 K Ultra at the Snow Mountain Ranch Trail Running Festival 2025, organized by Aravaipa Running, will take place on Saturday, 13 September 2025, starting from the YMCA of the Rockies at Snow Mountain Ranch in Granby, Colorado. This high-altitude 31.4-mile out-and-back course—featuring three demanding loops, 4,236 ft of total elevation gain, and a max elevation of 9,844 ft—includes aid stations per loop and allows a pacer on the final loop.
Race Date:
13 September, 2025
The 33 K race, also hosted by Aravaipa Running, runs on Saturday, 13 September 2025, at Snow Mountain Ranch (YMCA of the Rockies, Granby, CO). This two-loop, out-and-back trail covers 20.2 miles through stunning mountain scenery with 2,824 ft of elevation gain, including a major climb between Miles 3–6, supported by multiple aid stations.
Race Date:
13 September, 2025
The Half Marathon, organized by Aravaipa Running, will be held on Saturday, 13 September 2025, at the YMCA of the Rockies, Granby, CO start area. This scenic, all-dirt single-loop course includes a challenging climb between Miles 3–6, totals 1,707 ft of elevation gain, reaches a max elevation of 8,640 ft, and features four aid stations.
Race Date:
13 September, 2025
The 10 K race, also run by Aravaipa Running, is set for Saturday, 13 September 2025, beginning at Snow Mountain Ranch, Granby, CO. This beautiful dirt trail route covers approximately 6.1 miles with 653 ft of climbing, featuring two steep sections, two aid stations, and a 5-hour time limit.
Race Date:
13 September, 2025
The 5 K fun run, organized by Aravaipa Running, will occur on Saturday, 13 September 2025, at Snow Mountain Ranch, Granby, Colorado. This beginner-friendly trail follows a 3.3-mile out-and-back dirt path with 405 ft of elevation gain and a single aid station, offering a scenic, accessible challenge.
Weather based on historical averages.
The 50 K Ultra at the Snow Mountain Ranch Trail Running Festival 2025, organized by Aravaipa Running, will take place on Saturday, 13 September 2025, starting from the YMCA of the Rockies at Snow Mountain Ranch in Granby, Colorado. This high-altitude 31.4-mile out-and-back course—featuring three demanding loops, 4,236 ft of total elevation gain, and a max elevation of 9,844 ft—includes aid stations per loop and allows a pacer on the final loop.
The Snow Mountain Ranch 50km is 50km long.
The Snow Mountain Ranch 50km takes place in Granby, CO, USA.
The Snow Mountain Ranch 50km elevation gain is 1291 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 50 K Ultra at the Snow Mountain Ranch Trail Running Festival 2025, organized by Aravaipa Running, will take place on Saturday, 13 September 2025, starting from the YMCA of the Rockies at Snow Mountain Ranch in Granby, Colorado. This high-altitude 31.4-mile out-and-back course—featuring three demanding loops, 4,236 ft of total elevation gain, and a max elevation of 9,844 ft—includes aid stations per loop and allows a pacer on the final loop.
The Snow Mountain Ranch 50km is 50km long.
The Snow Mountain Ranch 50km takes place in Granby, CO, USA.
The Snow Mountain Ranch 50km elevation gain is 1291 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 33 K race, also hosted by Aravaipa Running, runs on Saturday, 13 September 2025, at Snow Mountain Ranch (YMCA of the Rockies, Granby, CO). This two-loop, out-and-back trail covers 20.2 miles through stunning mountain scenery with 2,824 ft of elevation gain, including a major climb between Miles 3–6, supported by multiple aid stations.
The Snow Mountain Ranch 33km is 33km long.
The Snow Mountain Ranch 33km takes place in Granby, CO, USA.
The Snow Mountain Ranch 33km elevation gain is 745 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 33 K race, also hosted by Aravaipa Running, runs on Saturday, 13 September 2025, at Snow Mountain Ranch (YMCA of the Rockies, Granby, CO). This two-loop, out-and-back trail covers 20.2 miles through stunning mountain scenery with 2,824 ft of elevation gain, including a major climb between Miles 3–6, supported by multiple aid stations.
The Snow Mountain Ranch 33km is 33km long.
The Snow Mountain Ranch 33km takes place in Granby, CO, USA.
The Snow Mountain Ranch 33km elevation gain is 745 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Half Marathon, organized by Aravaipa Running, will be held on Saturday, 13 September 2025, at the YMCA of the Rockies, Granby, CO start area. This scenic, all-dirt single-loop course includes a challenging climb between Miles 3–6, totals 1,707 ft of elevation gain, reaches a max elevation of 8,640 ft, and features four aid stations.
The Snow Mountain Ranch Half Marathon is 21km long.
The Snow Mountain Ranch Half Marathon takes place in Granby, CO, USA.
The Snow Mountain Ranch Half Marathon elevation gain is 520 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Half Marathon, organized by Aravaipa Running, will be held on Saturday, 13 September 2025, at the YMCA of the Rockies, Granby, CO start area. This scenic, all-dirt single-loop course includes a challenging climb between Miles 3–6, totals 1,707 ft of elevation gain, reaches a max elevation of 8,640 ft, and features four aid stations.
The Snow Mountain Ranch Half Marathon is 21km long.
The Snow Mountain Ranch Half Marathon takes place in Granby, CO, USA.
The Snow Mountain Ranch Half Marathon elevation gain is 520 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 10 K race, also run by Aravaipa Running, is set for Saturday, 13 September 2025, beginning at Snow Mountain Ranch, Granby, CO. This beautiful dirt trail route covers approximately 6.1 miles with 653 ft of climbing, featuring two steep sections, two aid stations, and a 5-hour time limit.
The Snow Mountain Ranch 10km is 10km long.
The Snow Mountain Ranch 10km takes place in Granby, CO, USA.
The Snow Mountain Ranch 10km elevation gain is 199 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 10 K race, also run by Aravaipa Running, is set for Saturday, 13 September 2025, beginning at Snow Mountain Ranch, Granby, CO. This beautiful dirt trail route covers approximately 6.1 miles with 653 ft of climbing, featuring two steep sections, two aid stations, and a 5-hour time limit.
The Snow Mountain Ranch 10km is 10km long.
The Snow Mountain Ranch 10km takes place in Granby, CO, USA.
The Snow Mountain Ranch 10km elevation gain is 199 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 5 K fun run, organized by Aravaipa Running, will occur on Saturday, 13 September 2025, at Snow Mountain Ranch, Granby, Colorado. This beginner-friendly trail follows a 3.3-mile out-and-back dirt path with 405 ft of elevation gain and a single aid station, offering a scenic, accessible challenge.
The Snow Mountain Ranch 5km is 5km long.
The Snow Mountain Ranch 5km takes place in Granby, CO, USA.
The Snow Mountain Ranch 5km elevation gain is 123 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The 5 K fun run, organized by Aravaipa Running, will occur on Saturday, 13 September 2025, at Snow Mountain Ranch, Granby, Colorado. This beginner-friendly trail follows a 3.3-mile out-and-back dirt path with 405 ft of elevation gain and a single aid station, offering a scenic, accessible challenge.
The Snow Mountain Ranch 5km is 5km long.
The Snow Mountain Ranch 5km takes place in Granby, CO, USA.
The Snow Mountain Ranch 5km elevation gain is 123 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Snow Mountain Ranch Trail Running Festival 2025 or Aravaipa Running. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Snow Mountain Ranch Trail Running Festival 2025 website.