Welcome to the 2025 Le Grizz Ultramarathon! For over 40 years, this legendary race has tested endurance, celebrated Montana’s wild beauty, and brought together a community of runners who love a challenge. Now, every mile you run can make an even bigger impact.
Your donations and race profits will support the Glacier Institute’s Big Creek Outdoor Education Center, where kids, families, and schools connect with nature and learn how to protect it. Since 1988, more than 40,000 students have experienced the magic of Big Creek through our hands-on outdoor education programs. We’re proud to say we’ve never turned a child away due to financial barriers, and with your help, we can do even more. Together, we can lighten the financial load for schools and teachers, ensuring that they can continue to enjoy this incredible place and all it has to offer.
From youth camps and field trips to family adventures, every program at Big Creek helps inspire a lifelong connection to the natural world. Whether you’re running the 50-mile ultramarathon, joining a relay team, or tackling the 10k or 5k, every dollar you raise will help us reach more students, schools, and families.
Every step matters, and so does every dollar. Together, we’re inspiring the next generation to cherish and protect these wild places—one mile at a time.
Thank you for running with purpose!
The Le Grizz Team & Glacier Institute Family
