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Hiking trails & Routes
United States
California
San Bernardino County

San Gorgonio Mountain via Vivian Creek Trail

Hard

3.4

(12)

48

hikers

San Gorgonio Mountain via Vivian Creek Trail

09:57

28.7km

1,630m

Hiking

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.

Last updated: June 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

San Gorgonio Wilderness

San Bernardino National Forest

Waypoints

A

Start point

Parking

Get Directions

1

8.63 km

Vivian Creek Trail & High Creek Camp

Highlight • Trail

Vivian Creek Trail is the steepest trail to summit San Gorgonio Mountain, but the scenery will compensate your effort and sweat. You hike along the burbling Vivian Creek and the treeline opens up for stunning vistas of Mount San Jacinto. There are two campsites along the trail: Halfway Camp and High Creek Camp if you want to split your hike into more than a day.

Since this is a quite popular trail up to San Gorgonio Mountain, you will need to obtain a free permit as soon as you plan your hike. Quotas fill up early!

Tip by

2

13.4 km

San Bernardino Peak Divide Trail

Highlight (Segment) • Trail

The San Bernardino Peak Divide Trail offers stunning views of the San Gorgonio Wilderness, but hikers must obtain a permit for day and overnight use. Although beautiful, the trail shows the effects of past wildfires, and hikers should prepare for a 13+ mile stretch with no water, depending on snowmelt. The trail can be dangerous in snowy conditions, so bring any necessary equipment or wait for the summer months when the snow melts.

Tip by

3

14.3 km

Mount San Gorgonio Summit

Highlight • Summit

San Gorgonio Mountain, also called Mount San Gorgonio or Old Greyback, is the highest peak in Southern California, standing at 11,503 feet. The mountain has a pyramid-like shape, with a steep north face and a gentler south face. On clear days, hikers can enjoy expansive 360-degree views of San Gorgonio Wilderness and even the Pacific Ocean.

Tip by

B

28.7 km

End point

Parking

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Way Types & Surfaces

Way Types

27.3 km

1.44 km

Surfaces

28.7 km

< 100 m

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Elevation

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Weather

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Today

Friday 17 July

27°C

14°C

34 %

Additional weather tips

Max wind speed: 16.0 km/h

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Frequently Asked Questions

Do I need a permit to hike the Vivian Creek Trail?

Yes, a wilderness permit is required for both day use and overnight camping on the Vivian Creek Trail, as it is located within the San Gorgonio Wilderness in the San Bernardino National Forest. These permits are free but limited, so it's essential to acquire them in advance. You can find more information and apply for permits through the USDA Forest Service website.

Are there any fees to enter the San Bernardino National Forest or hike this trail?

While there isn't a specific entrance fee for the San Bernardino National Forest itself, you do need a wilderness permit for the Vivian Creek Trail, which is free. However, some areas within the National Forest may require an Adventure Pass for parking, so it's always a good idea to check current regulations before your visit.

Where is the trailhead for the Vivian Creek Trail and what are the parking options?

The Vivian Creek Trailhead is located in the Mill Creek Canyon area. Parking is available near the trailhead, but it can fill up quickly, especially on weekends. Arriving early is highly recommended to secure a spot.

How difficult is the Vivian Creek Trail?

This trail is rated as difficult or strenuous. It's known for being the shortest and steepest route to the summit of San Gorgonio, involving a significant elevation gain of around 5,400 to 5,800 feet over approximately 17 to 19 miles round-trip. The initial section includes a very steep climb of about 1,000 vertical feet via switchbacks, and the final 2.25 miles to the summit gain about 1,800 feet with an average grade of 15%.

Is this trail suitable for beginners?

No, the Vivian Creek Trail is generally not suitable for beginners. Its significant distance, high elevation gain, and steep sections require a high level of physical fitness, endurance, and experience with challenging mountain hikes. It's often used as a training ground for other high-altitude treks.

Is the Vivian Creek Trail dog-friendly?

No, dogs are generally not allowed on the Vivian Creek Trail or within the San Gorgonio Wilderness area to protect wildlife and preserve the natural environment. Always check the latest regulations from the San Bernardino National Forest before planning your hike.

What is the best time of year to hike the Vivian Creek Trail?

The best time to hike this trail is typically from late spring through early fall (roughly May to October), when the snow has melted, and weather conditions are generally more favorable. During these months, you'll experience milder temperatures and clearer paths. Always check the weather forecast and trail conditions before you go.

Can I hike this trail in winter?

Winter hiking on the Vivian Creek Trail is possible but presents significant challenges and requires advanced skills and specialized gear. Expect snow and ice, especially at higher elevations, which can make the trail hazardous. Microspikes, snowshoes, and an ice axe may be necessary, along with experience in winter mountaineering. Always check current conditions and avalanche forecasts.

What kind of scenery can I expect along the route?

The trail offers incredibly diverse scenery. You'll start with lush, forested areas alongside Vivian Creek, passing impressive pines. As you ascend, panoramic views open up, showcasing areas like San Jacinto, the San Bernardino Mountains, and the Inland Empire. Above the treeline, the landscape transforms into rocky alpine slopes, offering expansive vistas that can stretch to the Pacific Ocean and Mojave Desert from the summit. You'll also pass by primitive campsites like Vivian Creek Trail & High Creek Camp.

What are the notable landmarks or viewpoints along the Vivian Creek Trail?

Key landmarks include the initial steep switchbacks, the serene sections following Vivian Creek, and several primitive campsites like Vivian Creek Camp and High Creek Camp. A short spur trail leads to a waterfall off Vivian Creek. The ultimate landmark is the Mount San Gorgonio Summit itself, offering spectacular 360-degree views across Southern California.

How long does it typically take to complete the Vivian Creek Trail?

Completing the full round-trip hike to San Gorgonio Mountain via the Vivian Creek Trail typically takes around 10-12 hours for most hikers, though this can vary significantly based on fitness levels and breaks. The total duration is approximately 35,846 seconds (just under 10 hours) according to komoot's estimates, but it's wise to plan for a full day.

Does the Vivian Creek Trail connect with other trails?

Yes, the route primarily follows the Vivian Creek Trail, but it also passes through sections of the San Bernardino Peak Trail, the San Gorgonio Mountain Trail, and the Halfway Trail, especially as you approach the summit area. You might also encounter the Sky High Trail near the peak.

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