The Split Mountain to Ouray river run on the Green River in Utah is a thrilling adventure for experienced kayakers and rafters. This section of the river features Class II-III rapids, including the infamous Triplet Falls, which requires strategic maneuvering. The best time to float this section is typically from May to July with a recommended flow of 800-2,000 cfs. However, water levels can fluctuate rapidly, so it's important to check conditions before embarking on this challenging run. Overall, the Split Mountain to Ouray river run is a must-do for experienced river enthusiasts seeking an adrenaline-packed adventure.