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San Gabriel Mountains National Monument adventures

San Gabriel Mountains National Monument Adventures

The San Gabriel Mountains National Monument offers a diverse landscape of rugged peaks, deep canyons, and lush forests, providing a natural escape for outdoor enthusiasts in Southern California.

346,177
Acres Protected
200+
Miles of Trails
3,000,000+
Annual Visitors
2014
Year Established

Popular Activities

Plan Your Visit

Everything you need to know to prepare for an unforgettable trip to San Gabriel Mountains National Monument.

Entrance Requirements

Access is free, but Adventure Passes are required for parking in some areas.

Best Time to Visit

Spring and fall offer mild weather and stunning natural vistas. Summer can be hot at lower elevations, while winter allows for skiing and snow activities.

Visitor Information

The Gateway Ranger Station is a key contact point for visitors.

Getting There

Easily accessed via Highway 2 (Angeles Crest Highway). Some roads may close seasonally due to snow.

Weather & Climate

Summers are hot and dry, especially at lower elevations, while winters can bring snow and cold temperatures to higher areas. Spring and fall both present mild weather, ideal for most outdoor activities.

Conservation Efforts

The monument faces threats from wildfires, invasive species, and urban encroachment. Efforts focus on habitat preservation and mitigating human impact.

Camping in San Gabriel Mountains National Monument

Find the perfect spot to stay overnight and immerse yourself in the details.

Buckhorn Campground

Developed
No Reservations Needed

Located off the Angeles Crest Highway, ideal for those seeking a forested setting with easy access to hiking trails.

Valley Forge Campground

Primitive
No Reservations Needed

A hike-in only site offering solitude away from the busy roads, nestled by a flowing stream.

Top Trails

Devil's Backbone Trail

Hard
7.5 miles

A challenging ascent to Mount Baldy with rewarding 360-degree views at the summit.

Bridge to Nowhere Trail

Moderate
10 miles

A unique hike that leads to a bridge stranded in a scenic and remote canyon.

Switzer Falls Trail

Moderate
4 miles

A popular trail following a creek to a picturesque waterfall.

Iron Mountain Trail

Hard
14 miles

Known for its steep, relentless climb and extreme elevation gain, rewarding persistent hikers with solitude.

Trailblazer Tips

Check local weather reports before heading out as conditions can change rapidly.

Snow chains may be required in winter months due to snowfall in higher elevations.

Arrive early in popular areas to secure parking, especially on weekends and holidays.

Bring plenty of water, as sources can be scarce and temperatures can vary greatly across elevations.

Helpful Resources