The longest cycling climbs in Utah. From this page you may navigate to the top 10 Longest bicycling climbs in Utah. The UT longest bike climbs we have documented are featured in the slideshow below. Scroll down this page to access the Utah Longest 10 Bicycle Climbs "Table". The cycling climbs covering the most distance in UT, and some of the hardest and most scenic bicycling climbs this state are, in order of distance, 1. Nebo Loop Rd North, 2. Monte Cristo Summit East, 3. Hwy 153, 4. Big Cottonwood Canyon, 5. La Sal Loop (Castle Valley), 6. Cedar Canyon, 7. Kolob Terrace Road, 8. Hwy 143, 9. Nebo Loop Rd South, and 10. Hwy 31.