The Upper Colorado River Run in Colorado is a Class II-III stretch of water that is approximately 16 miles long. The river is characterized by numerous rapids, including Eye of the Needle, Yarmony Rapid, and Pinball. The best time to float this section of water is during the summer months when water levels are typically between 1,500 and 3,000 cfs. However, the river is runnable year-round, and winter float trips can offer a unique and beautiful experience. Overall, this section of the Colorado River is a perfect run for beginner to intermediate paddlers.