Highlight • Summit
Mount Conness is a prominent summit in the Sierra Nevada range, standing at an impressive 12,590 feet (3,840 m) on the boundary of Yosemite National Park and the Inyo National Forest in California. This challenging peak is known for its rugged alpine terrain and is home to the second-largest glacier within Yosemite, the Conness Glacier, which feeds the scenic Twenty Lakes Basin.
What truly captivates visitors to Mount Conness are the spectacular 360-degree views from its summit. Hikers are rewarded…
Routes leading to this Highlight may be highly dangerous
Routes comprise technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.
This Highlight is in a protected area
Please check local regulations for:
Harvey Monroe Hall Research Natural Area
Tips
In the know? Log-in to add a tip for other adventurers!
Sign up for free
Nearby routes
Best routes near Mount Conness
Details
Informations
Elevation 3,770 m
Mount Conness is considered a challenging peak, primarily due to its high elevation, significant elevation gain, and varied terrain. Routes often involve off-trail hiking, scrambling over granite slabs and talus, and navigating steep, exposed sections. While some routes are Class 2, others can reach Class 3, requiring basic climbing skills and comfort with exposure. It's not recommended for beginner hikers without prior experience in similar alpine environments.
While the summit of Mount Conness itself is challenging, there are more accessible trails in the surrounding areas that offer stunning views without the extreme difficulty. For instance, the trails around Saddlebag Lake and the Twenty Lakes Basin offer beautiful day hikes with less elevation gain and technical terrain, providing a taste of the high Sierra landscape. These can be good options for those looking for a less strenuous experience.
The primary access points are typically from areas near Tuolumne Meadows within Yosemite National Park or from Saddlebag Lake, which is just outside the park boundary. Both are accessed via Tioga Road (Highway 120). Parking at these trailheads can fill up quickly, especially during peak season (summer weekends), so arriving early in the morning is highly recommended to secure a spot.
For day hikes to Mount Conness, a wilderness permit is generally not required unless you plan to camp overnight in the backcountry. However, if you are entering Yosemite National Park, standard park entrance fees apply. For overnight trips, a wilderness permit is mandatory and should be reserved in advance, especially for popular entry points.
Within Yosemite National Park, dogs are generally not permitted on unpaved trails, including most routes leading to Mount Conness. However, in the surrounding Inyo National Forest areas, such as the trails originating from Saddlebag Lake, dogs are often allowed on leash. Always check specific regulations for the area you plan to visit, as rules can vary.
Mount Conness is home to the Conness Glacier, the second-largest glacier in Yosemite, which feeds the picturesque Twenty Lakes Basin. Hikers will also encounter diverse alpine terrain including granite slabs, talus fields, and the dramatic Vertical Southwest Wall, a popular climbing spot. From the summit, you can enjoy panoramic views of the Yosemite high country, including Half Dome, the Ritter Range, and Tuolumne Meadows.
Given the high altitude and challenging terrain, essential gear includes sturdy hiking boots, layers of clothing (even in summer, temperatures can drop significantly), rain gear, plenty of water, high-energy snacks, a map and compass/GPS, a headlamp, and sun protection (hat, sunglasses, sunscreen). For routes involving Class 3 scrambling, a helmet and gloves are also advisable. Always be prepared for rapidly changing weather conditions.
Mount Conness is located in a remote wilderness area. The closest amenities are typically found along Tioga Road, such as the Tuolumne Meadows Lodge or Tuolumne Meadows Store (seasonal). For more extensive options, you would need to travel further to towns like Lee Vining (east of Tioga Pass) or Mammoth Lakes, which offer various lodging, dining, and supply stores.
Mount Conness is generally considered more challenging than the standard route on Cathedral Peak. While both involve significant elevation gain and scrambling, Mount Conness often features longer sections of sustained Class 2 and Class 3 terrain, greater exposure, and more extensive off-trail navigation over talus and granite. Cathedral Peak's standard route is typically a more defined Class 3 climb, whereas Conness can feel more like an extended alpine mountaineering objective.
Winter ascents of Mount Conness are only recommended for highly experienced mountaineers with extensive knowledge of winter alpine conditions, avalanche safety, and glacier travel. Tioga Road is closed during winter, making access extremely difficult and requiring long approaches. Snow and ice cover the mountain, transforming it into a serious mountaineering objective that demands specialized gear like ice axes, crampons, and ropes.
While there isn't a single well-defined loop trail that encompasses the summit of Mount Conness, hikers often create custom loop itineraries by combining different approaches and descents, particularly when incorporating the Twenty Lakes Basin. For example, one might ascend via the Young Lakes approach and descend towards Saddlebag Lake, requiring a car shuttle or hitchhiking. These are typically multi-day backpacking trips rather than day hikes.