Kat’cina Mosa 100K Mountain Challenge Run Springville, UT   Aug 8, 2026

The Kat’cina Mosa 100K Mountain Challenge Run is a VERY, VERY challenging, difficult and scenic loop course through the Wasatch Mountains above Provo, Utah. About 42% will be on the same course as the Squaw Peak 50, but in the opposite direction. These sections are Mile 2.1, Pole Heaven to mile 16.27, Rock Canyon and mile 24, just past Big Springs to mile 38.5 – Little Valley. The trail will be flagged just as well as the SP run. It will consist of – 48% dirt trails, 44% dirt roads and 8% paved. Elevation gain is over 15,000 feet and loss is 15,000 ft. 11,000 FEET OF ELEV. GAIN BY MILE 28.5 IN 3 SEPARATE CLIMBS. THEN THE LAST HALF ONLY HAS ABOUT ANOTHER 3,000 FEET OF CLIMB