Highlight • Summit
Mount San Gorgonio Summit
Hiking
5.0
(3)
Mount San Gorgonio Summit, often affectionately known as "Old Greyback," stands as the highest peak in Southern California and the Transverse Ranges, reaching an impressive elevation of 3,506 meters (11,503 feet). Located within the San Bernardino Mountains, this prominent natural landmark is a centerpiece of the San Gorgonio Wilderness, part of the larger Sand to Snow National Monument. Its distinctive pyramid shape and broad, one-square-mile summit plateau make it a recognizable feature across the region.
Hikers consistently praise the incredible views from this point, describing expansive 360-degree panoramas that stretch across the San Gorgonio Wilderness and, on clear days, even reach the distant Pacific Ocean. The sense of achievement upon reaching the summit of Southern California's highest peak is a significant draw, making it a bucket-list destination for many outdoor enthusiasts.
Preparing for a hike to Mount San Gorgonio Summit requires careful planning. This is a challenging ascent, often involving significant elevation gain and rugged terrain. Visitors should be equipped with appropriate gear, including sturdy footwear, layers of clothing for varying conditions, and sufficient water. Permits are required for both day hikes and overnight trips into the San Gorgonio Wilderness, so securing these in advance is essential for a smooth experience.
The mountain is accessible year-round, with summer being a popular time for hiking due to generally pleasant conditions. However, the peak's status as the only mountain in Southern California with a summit significantly above the tree line means its bright white winter snow cap is visible from afar, offering opportunities for those prepared for winter hiking conditions involving snow and ice. The diverse ecosystems encountered along the trails, from forested areas to the rocky, moon-like summit, add to the adventure.
Reaching the bald summit, hikers are greeted by a unique, rocky landscape that contrasts with the lush lower elevations. The experience of standing atop the highest point in Southern California, with views stretching for hundreds of miles, including the longest recorded line of sight in the contiguous United States to Mount Whitney, is truly unforgettable. Wildlife, such as deer, mountain lions, and bighorn sheep, can sometimes be spotted along the trails, adding to the natural immersion.
Whether you're seeking a challenging hike or simply wish to explore the highest point in Southern California, Mount San Gorgonio offers a rewarding experience. You can discover a variety of routes and plan your visit using komoot, which provides detailed maps and information for hiking and trail running adventures in this iconic wilderness area.
This Highlight is in a protected area
Please check local regulations for:
San Gorgonio Wilderness
Tips
September 9, 2024
Hiking
November 11, 2019
Hiking
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Nearby routes
Best routes near Mount San Gorgonio Summit
3
hikers
16.1km
05:09
1,080m
60m
Hike the challenging San Gorgonio Mountain via Fish Creek Trail, a 10-mile route to Southern California's highest peak with 3,553 feet of ga
4.2
(5)
56
hikers
28.7km
09:57
1,630m
1,630m
The Vivian Creek Trail to San Gorgonio Mountain is a demanding ascent that rewards your effort with incredibly diverse scenery. You'll start in a wooded canyon, transition to lush sections alongside Vivian Creek with its babbling waters, and then climb through changing forest types. As you gain elevation, the landscape opens up to exposed alpine slopes and boulders, culminating in the broad, rocky expanse of the Mount San Gorgonio Summit. This difficult 17.9 miles (28.7 km) route involves a substantial 5358 feet (1633 metres) of elevation gain, typically requiring around 9 hours and 57 minutes to complete.
Planning your trip requires a free wilderness permit, which you can obtain online. This is the shortest and steepest path to the summit, so be prepared for a relentless uphill climb and ensure you carry plenty of water, especially for the exposed upper sections. Parking is available at the trailhead, but it's a popular spot, so an early start is recommended to secure a space and beat the crowds.
San Gorgonio Mountain, affectionately known as "Old Grayback," stands as Southern California's highest peak, making this hike a significant achievement for any enthusiast. The trail serves as an excellent high-altitude training ground for those preparing for other major climbs like Mt. Whitney. From the summit, you're treated to expansive 360-degree panoramic views that can stretch from the Pacific Ocean to the Mojave Desert on clear days, showcasing the dramatic escarpment of the mountain's north face.
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Elevation 3,490 m
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Frequently Asked Questions
What are the most popular and challenging trails to Mount San Gorgonio Summit?
The Vivian Creek Trail is widely considered the most popular and direct route to Mount San Gorgonio Summit. It's known for its significant elevation gain and challenging nature, making it a favorite for experienced hikers. Other challenging options include the San Bernardino Peak Trail and the Fish Creek Trail, which offer different perspectives and varying lengths.
What is the typical terrain and elevation gain like on a hike to Mount San Gorgonio Summit?
The terrain to Mount San Gorgonio Summit varies from heavily forested lower elevations to a rocky, moon-like landscape above the tree line. Hikers should expect significant elevation gain, often exceeding 5,000 feet (1,500 meters) on popular routes like the Vivian Creek Trail, making it a strenuous ascent. The summit itself is a broad, one-square-mile plateau.
Are permits required to hike Mount San Gorgonio, and how can I obtain one?
Yes, permits are required for both day hikes and overnight trips into the San Gorgonio Wilderness, which encompasses Mount San Gorgonio. These permits are essential for managing visitor numbers and preserving the wilderness. You can typically obtain permits through the San Gorgonio Wilderness Association or the San Bernardino National Forest website. It's highly recommended to secure your permit well in advance, especially for weekend trips during peak season.
What are the parking options and public transport availability for Mount San Gorgonio trailheads?
Parking is available at various trailheads, such as the Vivian Creek Trailhead. However, parking lots can fill up very quickly, especially on weekends and during summer months. Arriving early in the morning is strongly advised. Public transport options directly to the trailheads are generally limited, so most visitors rely on personal vehicles.
What are the seasonal considerations for hiking Mount San Gorgonio, especially in winter?
While Mount San Gorgonio is accessible year-round, winter hiking presents significant challenges. The summit is well above the tree line and receives substantial snowfall, often requiring specialized gear like snowshoes, microspikes, or crampons, and an ice axe. Conditions can be harsh, with strong winds and rapidly changing weather. Summer offers more pleasant conditions, but even then, hikers should be prepared for varying temperatures and potential afternoon thunderstorms.
Is Mount San Gorgonio Summit suitable for families or beginner hikers?
Mount San Gorgonio Summit is generally considered a challenging hike due to its length, significant elevation gain, and rugged terrain. It is not typically recommended for beginner hikers or young children. There are no specific 'family-friendly' or 'beginner-friendly' routes to the summit itself. However, there are easier, shorter trails within the broader San Bernardino National Forest that might be more suitable for families or those new to hiking.
Are dogs allowed on the trails to Mount San Gorgonio Summit?
No, dogs are generally not permitted on the trails within the San Gorgonio Wilderness, including those leading to the summit. This restriction is in place to protect the fragile ecosystem and wildlife within this designated wilderness area. It's always best to check the latest regulations from the San Bernardino National Forest before planning your trip.
What kind of wildlife might I encounter on the trails to Mount San Gorgonio?
The San Gorgonio Wilderness is home to diverse wildlife. Hikers might spot deer, various bird species, and smaller mammals. While less common, the area also hosts mountain lions and bighorn sheep. It's important to observe wildlife from a distance and never feed animals. Proper food storage is also crucial to avoid attracting wildlife.
What are some notable natural features or viewpoints along the way to the summit?
Beyond the panoramic views from the summit, hikers will encounter diverse ecosystems, from dense forests at lower elevations to sub-alpine meadows and small lakes. The transition zone above the tree line offers unique rocky landscapes. On clear days, you can often see the deserts of Joshua Tree National Park and even the Pacific Ocean from various high points along the trails.
What essential gear should I pack for a hike to Mount San Gorgonio Summit?
Given the challenging nature and varying conditions, essential gear includes sturdy hiking boots, layered clothing (even in summer), sufficient water (more than you think you'll need), high-energy snacks, a map and compass or GPS device, a headlamp, sun protection (hat, sunscreen, sunglasses), a first-aid kit, and a permit. For winter hikes, add snowshoes, microspikes/crampons, and an ice axe.
Are there any alternative hikes or viewpoints near Mount San Gorgonio for those not attempting the summit?
Absolutely. For those seeking less strenuous options or different perspectives, the San Bernardino National Forest offers numerous other trails. Nearby areas like the Big Bear Lake region provide a variety of hiking opportunities with beautiful views and varying difficulty levels. Jenks Lake, located on the north slope of San Gorgonio, is also a scenic spot for a more relaxed visit.