Beaverhead Endurance Runs 100K and 55K

Embark on an unforgettable journey through the majestic Beaverhead Mountains with the Beaverhead Endurance Runs 100K (60.3M) and 55K (33.1M), set for Saturday, July 11, 2026, in Salmon, ID. These aren't just races; they're a challenging exploration along the Continental Divide, tracing the border between Idaho and Montana. Runners will navigate a rugged, point-to-point course primarily on the Continental Divide National Scenic Trail (CDT), experiencing a relentless high-altitude adventure with elevations averaging around 8,500 feet and peaks soaring to 10,000 feet. Expect a diverse mix of terrain, from smooth singletrack and ATV doubletrack to demanding scree fields, talus, and steep climbs and descents that truly test your mettle.

The Beaverhead Endurance Runs are renowned for their breathtaking scenery and "old school" mountain race atmosphere. You'll be treated to panoramic vistas of Idaho's Lemhi River Valley and Montana's Big Hole Valley, traversing a landscape rich in history, including the birthplace of Sacajawea and routes of the Lewis and Clark expedition. The 100K boasts a substantial 12,700 feet of ascent and 15,100 feet of descent, with the 55K covering the equally demanding second half of the course, starting near the Lemhi Pass aid station. Aid stations are well-stocked with typical ultra-running provisions, including water, gels, and hydration products, though runners are encouraged to plan their hydration diligently for the stretches between. Typical race day conditions in mid-July offer highs around 82°F and lows near 44°F, with a minimal 2% chance of precipitation, creating a true high-mountain summer running experience.

This event is more than just a race; it's a profound accomplishment, attracting serious endurance runners as a Western States 100 Qualifier and a UTMB Index Race. The course is meticulously marked, guiding you through this remote and wild territory. Prepare for a truly challenging yet rewarding experience where the stunning, untouched beauty of the Continental Divide will inspire every stride, right up to the finish line in Salmon, ID.