Teton Dam Marathon 2025

• Commemorates Teton Dam break; starts at dam site, ends in Rexburg.
• Offers marathon, half-marathon, relay, 10K, 5K, kids race.
• Scenic rural course with varied elevation; downhill, then uphill.
• No qualification times; check website for registration details.
• Small-town feel, enthusiastic support, well-organized event.

Set against the scenic backdrop of Rexburg, Idaho, the Teton Dam Marathon is a unique event commemorating the significant yet tragic historical event of the Teton Dam breach in 1976. The marathon provides runners with an extraordinary out-and-back course that embodies the resilience and spirit of the affected community. Participants are treated to breathtaking views of idyllic farmland, quaint towns, and expansive open spaces, making the race a feast for the eyes and a serene escape from urban life. The marathon, part of a larger event that includes a half-marathon, relay, 10K, and 5K races, attracts running enthusiasts nationwide. This inclusive event showcases endurance, with approximately a thousand runners attending each year, embodying the transformation from tragedy to triumph. The course challenges participants with hilly terrain amid a spectacular landscape, featuring elevations between 4866 and 5370 feet. The environmental conditions in early June typically offer warm temperatures — perfect for those preferring a summer race. While this marathon isn’t a qualifier for Boston or the World Marathon Majors, its small community feel and dedicated volunteer support provide first-time marathoners and seasoned veterans alike a memorable and rewarding race-day experience.

Expect temperatures between 44-73°F (6-22°C) in early June in Rexburg, Idaho, with comfortable humidity levels. Conditions are generally favorable for running, though occasional rain showers may occur. Light winds typically accompany the event, making it ideal for marathon participants.

The Teton Dam Marathon offers a distinctive point-to-point journey starting at the historic Teton Dam Site and concluding at Smith Park in Rexburg, Idaho. Runners begin at an elevation of 5,380 feet, enjoying a gentle descent over the first 15 miles with a 500-foot drop. The course then presents a 3-mile uphill challenge, gaining 360 feet before descending to the finish at 4,850 feet.

Participants are treated to breathtaking views from the Teton Dam Site and a serene finish at Smith Park. The marathon's hilly profile and significant elevation changes provide a test of endurance, especially for those unaccustomed to high-altitude or hilly terrain. Set in a tranquil rural landscape, the race offers a peaceful escape with minimal traffic. With a smaller field of runners, the atmosphere is intimate and supportive, making the Teton Dam Marathon a memorable and rewarding experience.

Rexburg, Idaho, offers a delightful mix of outdoor adventures and cultural experiences, making it an ideal destination for marathon travelers. Nestled in the heart of eastern Idaho, Rexburg is easily accessible via Idaho Falls Regional Airport, just 25 miles away. For accommodations, choose from a variety of hotels like Hampton or SpringHill Suites, ensuring a comfortable stay.

While in Rexburg, don't miss the St. Anthony Sand Dunes, a haven for ATV enthusiasts and nature lovers alike. For a unique wildlife experience, visit Yellowstone Bear World, where you can drive through and observe bears, moose, and bison up close. Cool off at Rexburg Rapids, a family-friendly water park featuring a lazy river and slides.

Culturally, the Rexburg Idaho Temple and the historic Rexburg Tabernacle offer architectural beauty and community events. Delve into local history at the Museum of Rexburg, which chronicles the Teton Dam disaster and offers interactive exhibits. For those seeking outdoor thrills, the nearby Grand Tetons provide opportunities for hiking, camping, and fishing. After a day of exploration, savor local cuisine at a variety of eateries, from fast food to family restaurants. Whether you're in town for the Teton Dam Marathon or simply exploring, Rexburg promises a memorable visit.