Mount Lemmon: Arizona’s Sky Island Adventure
Tucked within the Coronado National Forest just an hour’s drive from downtown Tucson, Mount Lemmon rises from the Sonoran Desert floor to a forested summit over 9,000 feet high. Often called a “sky island” for the dramatic change in ecosystems from base to peak, this destination offers a cool mountain retreat from desert heat, a scenic drive full of panoramic vistas, and endless opportunities for outdoor recreation, including hiking, camping, picnicking, and even winter skiing.
Destination Details
| Season | Year-round (road may close for snow or fire danger) |
| Location | Santa Catalina Mountains, Coronado National Forest |
| General GPS Coordinates | 32.44309821, -110.787404 |
| Management | U.S. Forest Service, Santa Catalina Ranger District |
| Elevation | 9,157 feet at the summit |
| Nearest Major City | Tucson, Arizona |
How to Get to the Destination
From downtown Tucson, follow East Tanque Verde Road until it becomes the Catalina Highway (also known as the Sky Island Scenic Byway). This paved, 24-mile route winds through desert grasslands and pine-oak woodlands before reaching the summit area. Expect about one hour of drive time, plus stops at scenic overlooks such as Windy Point. In winter, heavy snowfall can close the road; for current conditions, call the road hotline at (520) 351-3351.
Destination Overview
Mount Lemmon’s defining feature is its rapid shift in ecosystems—from saguaro-filled desert slopes at the bottom to thick forests of pine and fir at higher elevations. Temperatures can drop by as much as 30 degrees from the base to the summit, providing a much-needed escape from the desert heat. In winter, Ski Valley opens for skiing and snowboarding, making Mount Lemmon the southernmost ski area in the United States
Things to Do
- Hiking: Explore roughly 250 miles of trails, ranging from short walks to backcountry routes. Popular trailheads include Marshall Gulch near Summerhaven and Molino Basin at lower elevations.
- Camping: Several campgrounds span different elevations, from desert sites at Molino Basin to the cooler, forested Spencer Canyon. Some accept reservations (like Rose Canyon Lake), while others are first-come, first-served. Check out our camping guide to Coronado National Forest for more information.
- Picnicking: Picnic areas are available at various elevations with tables, grills, and vault toilets. Fees may apply, and water availability may vary, so plan accordingly.
- Scenic Overlooks & Learning: Pullouts like Windy Point offer vast views of the Tucson basin. The Palisades Visitor Center provides exhibits on natural and cultural history.
- Night Sky Viewing: Southern Arizona’s dark skies make Mount Lemmon an excellent stargazing spot. The Mount Lemmon SkyCenter offers telescope tours (reservations required).
- Summerhaven: Near the summit, this small community offers restaurants, a general store, and cabin rentals—ideal for a quick snack or an extended stay.
- Mount Lemmon Ski Valley: This stands as the southernmost ski area in the continental United States, situated near the 9,157-foot summit of Mount Lemmon. More info here.
Visitor Tips & Safety
- Day-Use Fees: Passes are required at many sites and can be purchased on-site or online at recreation.gov.
- Weather & Road Safety: The highway is narrow and winding; watch for cyclists and wildlife. Always check weather forecasts for monsoon storms, flash floods, and winter conditions.
- Wildlife & Plants: Be mindful of venomous snakes at lower elevations and possible bears at higher altitudes. Secure all food to avoid animal encounters.
- Water & Supplies: Bring plenty of water, especially in summer. Limited water can be found at certain campgrounds and the Palisades Visitor Center when open.
