Mount Lemmon, located in Tucson, Arizona, offers one of the most spectacular cycling routes in the United States. The paved climb begins on the desert floor at 2,858 feet (871 meters) and ascends 27.8 miles (44.7 km) to the summit’s observatory at 9,134 feet (2,784 meters), making it one of the longest and most scenic paved climbs in the country. Along the way, riders experience an incredible shift in biodiversity, passing through multiple ecosystems—from towering saguaros in the Sonoran Desert to the cool, pine-covered forests of the Sky Islands. This dramatic elevation gain not only offers breathtaking views but also a refreshing temperature drop, often making the summit 20 to 30 degrees cooler than the base. Parking is available at Le Buzz Café, a popular meeting spot for cyclists, or near the first mile marker (MP0) for a convenient start to this unforgettable ride. Learn more on our FAQs page.
Current Weather
Use the drop down to view weather at the peak or base. Learn more about typical temperatures on our weather page.
2025 Events
Easy Peasy Lemmon Squeezy
Sponsor: Tucson Tri Girls
Date: Saturday June 28, 2025 (Six Saturdays)
Cost: $20 for all 6 weeks
Registration is open on the Tucson Tri Girls Website
Description: Easy Peasy Lemmon Squeezy is a 6-week, non-competitive ride series by Tucson Tri Girls that gradually builds endurance as participants work their way up Mount Lemmon, choosing between the Half Lemmon (to Windy Point) or the Whole Lemmon (to Summerhaven). With SAG stops providing water, snacks, and encouragement, this event welcomes all abilities, helping riders conquer the mountain one step at a time.
(Past) Mount Lemmon Hill Climb
Sponsor: Greater Arizona Bicycling Association
Date: Friday May 2, 2025
Cost: GABA Members $50.00/ Non – Members $70.00
Learn more on GABA’s Website
Description: The Greater Arizona Bicycle Association (GABA) hosts a fully supported, non-competitive ride up Mount Lemmon, featuring four SAG stops with refreshments, a celebratory pie station near the summit, and vehicular sweep support to assist with mechanical issues or provide a lift if needed.