The Big Alta, established in 2005, has become a highlight for trail running enthusiasts in Marin County. The event offers multiple race distances to accommodate runners of all levels: 50K and 28K. The courses wind through the picturesque Lucas Valley and surrounding areas, offering participants views of Big Rock Ridge and Miller Creek. The event is known for its well-organized logistics, supportive volunteers, and a festive atmosphere that includes post-race refreshments and activities. Proceeds from the event often benefit local environmental and community organizations, contributing to the preservation of the natural trails used in the races.
Race Date:
22 March, 2025
The Big Alta 50km, featuring 2042 meters of elevation gain, begins at Marinwood Community Park and takes runners on a challenging journey through Oregon’s Cascade Mountains. This ultra-distance race offers rugged terrain, forested paths, and stunning alpine views, providing a true test for seasoned trail runners.
Weather based on historical averages.
The Big Alta 50km, featuring 2042 meters of elevation gain, begins at Marinwood Community Park and takes runners on a challenging journey through Oregon’s Cascade Mountains. This ultra-distance race offers rugged terrain, forested paths, and stunning alpine views, providing a true test for seasoned trail runners.
The Big Alta 50km is 50km long.
The Big Alta 50km takes place in Lucas Valley-Marinwood, California, USA.
The Big Alta 50km elevation gain is 2042 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 Big Alta 50km, featuring 2042 meters of elevation gain, begins at Marinwood Community Park and takes runners on a challenging journey through Oregon’s Cascade Mountains. This ultra-distance race offers rugged terrain, forested paths, and stunning alpine views, providing a true test for seasoned trail runners.
The Big Alta 50km is 50km long.
The Big Alta 50km takes place in Lucas Valley-Marinwood, California, USA.
The Big Alta 50km elevation gain is 2042 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 The Big Alta or Daybreak Racing LLC. 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 The Big Alta website.