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Hiking trails & Routes
United States
California
San Bernardino County
Sand To Snow National Monument

San Gorgonio Mountain via Fish Creek Trail

Hard

3.0

(16)

61

hikers

San Gorgonio Mountain via Fish Creek Trail

05:09

16.1km

1,080m

Hiking

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

Last updated: February 26, 2026

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1

16.0 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 …

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16.1 km

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Way Types & Surfaces

Way Types

16.0 km

106 m

Surfaces

12.5 km

3.61 km

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Elevation

Elevation

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Highest point (3,490 m)

Lowest point (2,440 m)

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Wednesday 20 May

16°C

1°C

0 %

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Frequently Asked Questions

How long does it take to hike San Gorgonio Mountain via Fish Creek Trail?

The hike typically takes around 10 hours to complete as a day trip. However, due to its strenuous nature and significant length (approximately 18.4 to 20.2 miles round trip), some hikers plan it as a 1 to 2-day backpacking trip. Starting early is highly recommended to ensure enough time and avoid afternoon heat.

Do I need a permit or Adventure Pass for this hike?

Yes, both a wilderness permit and an Adventure Pass are required for this hike. You can find more information and obtain permits through the USDA Forest Service website.

How do I get to the Fish Creek Trailhead?

Accessing the trailhead involves driving about 7.5 miles on a gravely dirt road (Forest Service Road 1N05). A high-clearance vehicle is often necessary, and the road is typically closed during the winter months. Plan your approach accordingly.

What is the best time of year to hike this trail?

The best time to hike is generally when the access road to the trailhead is open and free of snow, typically from late spring through fall. Hikers are advised to start early in the day to avoid heat, especially during summer months, and to allow ample time for completion.

What is the terrain like on the Fish Creek Trail?

The trail starts gently, but after about a mile, you'll cross Fish Creek and begin a more significant elevation gain. The initial section passes through a burn scar area from the 2015 Lake Fire. You'll encounter varying ecosystems, from pine forests to meadows, and eventually a boulder field near the summit. Higher elevations are often exposed to the sun.

Are there water sources available along the trail?

Water is typically available seasonally at Fish Creek, located about 1.7 miles into the hike, and approximately half a mile beyond the Fish Creek Trail Camp. Lodgepole Spring, accessible via a trace trail from Fish Creek Saddle, is another potential water source. Always carry sufficient water and filter any natural sources.

Is the San Gorgonio Mountain via Fish Creek Trail dog-friendly?

The provided information does not explicitly state whether dogs are allowed on this specific trail. It's best to check the current regulations for the San Gorgonio Wilderness Area regarding pets before planning your hike.

What can I expect to see along the route?

You'll experience diverse scenery, including pine-laden forests, meadows, and views of Fish Creek Meadow and Dry Lake. As you ascend, look for views of Dragon's Head peak and distant Sugarloaf Mountain. The ultimate reward is the panoramic vista from the Mount San Gorgonio Summit, showcasing the San Bernardino high line of peaks and views down to Mill Creek. An interesting historical feature is the wreckage of a C-47 airplane from 1953 near the 11,000-foot level.

How does the Fish Creek Trail compare to other routes up San Gorgonio Mountain?

The Fish Creek Trail is often considered a less-traveled and quieter alternative to more popular routes like the Vivian Creek trail, offering more solitude. While strenuous, it's also described as 'probably the easiest way to get up to the summit' due to its starting elevation above 8,000 feet, which reduces the total ascent compared to other trails.

Does the trail intersect with other paths?

Yes, the route includes sections of the Sky High Trail (39%), Fish Creek Trail (32%), Fish Creek Trail (25%), Fish Creek Trail (9%), and San Gorgonio Mountain Trail (6%). The path eventually merges with the Sky High Trail at Mineshaft Saddle.

Is this trail suitable for beginners?

No, this trail is generally rated as difficult and strenuous due to its significant length (over 18 miles) and substantial elevation gain (over 3,300 feet). It is not recommended for beginners and is often used as a training ground for more challenging expeditions like Mt. Whitney.

Are there any specific regulations or fees for the San Gorgonio Wilderness?

Yes, in addition to the required wilderness permit and Adventure Pass, you must adhere to all wilderness regulations. These typically include Leave No Trace principles, fire restrictions, and group size limits. Always check the latest regulations with the USDA Forest Service before your trip.

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