Kat'cina Mosa 100K Mountain Run

The Kat'cina Mosa 100K Mountain Run, set for August 8, 2026, in the stunning Wasatch Mountains near Springville, UT, is not for the faint of heart. This "VERY, VERY challenging" 100K ultramarathon is renowned for its demanding course and breathtaking scenery. Runners will tackle a rigorous loop consisting of approximately 48% dirt trails, 44% dirt roads, and 8% paved surfaces, all while ascending a staggering 15,000 to over 17,000 feet of elevation. The early miles are particularly brutal, featuring three major climbs that rack up 11,000 to 13,000 feet of gain by mile 28.5, followed by another 3,000 to 4,000 feet in the latter half. Nearly half the route reverses sections of the equally challenging Squaw Peak 50 course, promising familiar yet reversed terrain. Typical race day conditions in early August bring highs around 94°F and lows around 63°F, with only a 2% chance of precipitation, ensuring a dry, and potentially warm, alpine adventure.

What truly sets the Kat'cina Mosa apart, beyond its physical demands, is its distinction as the USATF Utah State Championship 100K race. The course itself is a visual feast, offering panoramic views of valleys and cities below, alongside picturesque meadows and wildflowers in season. While the relentless climbs in the first 30 miles are notorious for turning legs to "jello," the journey is punctuated by numerous aid stations positioned every 3 to 8 miles, providing essential hydration, fuel, and the unwavering support of highly praised volunteers. The race starts early at 3:00 AM, with an even earlier 1:00 AM option for those anticipating a longer day on the trails, allowing participants to experience the serene beauty of a mountain sunrise.

The start and finish line can be found at the Kiwanis Pavilion in Kelly's Grove Park, just past the Hobble Creek Golf Course Club House in Springville, UT. Runners consistently highlight the immense satisfaction of completing this beast of a race, a true test of grit and endurance amidst the magnificent Wasatch Range. The name itself, "Kat'cina Mosa," holds cultural significance, being the Hopi spelling for "Cat Kachina" and inspired by a Navajo runner. This race offers not just a physical challenge, but a deeply rewarding journey through stunning natural landscapes and a touch of unique cultural heritage.