Gabrielino Trail: Switzer Falls to Hahamongna Watershed
Gabrielino Trail: Switzer Falls to Hahamongna Watershed
3.0
(27)
65
hikers
04:38
16.5km
110m
Hiking
Embark on a diverse journey along the Gabrielino Trail from Switzer Falls to Hahamongna Watershed, a moderate 10.2-mile (16.5 km) hike that offers a mix of wooded canyons, riverside paths, and historical remnants. You'll begin with the impressive 15-meter Switzer Falls, then follow the Arroyo Seco, navigating multiple river crossings and enjoying views of the San Gabriel Mountains. The trail transitions from rugged sections to a paved road near Hahamongna, making for a varied experience that typically takes around 4 hours and 38 minutes to complete.
For a smoother experience, plan to hike this route predominantly downhill by starting at Switzer Falls. Parking at the Switzer Falls trailhead can get busy, so an early start is highly recommended, especially on weekends. Spring and fall are the best seasons to visit, offering milder temperatures and the chance to see wildflowers. This trail is also dog-friendly, provided your canine companion remains on a leash.
This section of the Gabrielino Trail is rich in both natural beauty and history, passing by the ruins of Switzer's Trail Camp, a popular resort that burned down in 1959. The trail closely follows the Arroyo Seco, a vital water source, and offers glimpses of high biodiversity with various plants and potential wildlife sightings like coyotes and bobcats. It's a great way to experience a significant part of the Gabrielino National Trail, established in 1970 as the nation's first National Recreation Trail.
Last updated: June 9, 2026
Tips
Your route passes through a protected area
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Waypoints
Start point
Parking
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8.09 km
Highlight • Mountain Hut
Tip by
10.0 km
Highlight • Rest Area
Tip by
14.0 km
Upper Arroyo Seco
Nature Reserve
16.5 km
End point
Way Types & Surfaces
Way Types
13.8 km
2.55 km
< 100 m
Surfaces
9.19 km
4.70 km
1.42 km
870 m
240 m
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Elevation
Highest point (1,000 m)
Lowest point (350 m)
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Weather
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Today
Wednesday 15 July
31°C
19°C
0 %
Additional weather tips
Max wind speed: 11.0 km/h
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This route was planned by komoot.
Parking is available at the Switzer Falls trailhead. Be aware that parking areas, especially at popular trailheads like Switzer Falls, can fill up quickly, particularly on weekends. Arriving early is highly recommended.
Yes, the Gabrielino Trail is generally dog-friendly. However, dogs must be kept on a leash at all times. Remember to bring enough water for your dog, especially on more exposed sections, and always pack out any waste.
Spring and fall are generally the best times to hike this trail, offering milder temperatures and beautiful scenery. In spring, you might see wildflowers. Summer can be very hot, especially on exposed sections, so an early start is crucial. Winter can bring cooler temperatures and potentially higher water levels at river crossings after rain.
Yes, a valid Adventure Pass is typically required for parking at many trailheads within the Angeles National Forest, including the Switzer Falls area. You can purchase these passes at ranger stations, visitor centers, or authorized vendors. Always check the latest regulations before your visit.
The terrain is quite varied. You'll encounter peaceful, wooded sections along the Arroyo Seco riverbanks with numerous river crossings, which can be wet after rains. Other parts involve more rugged paths along canyon walls. Some sections are exposed and can be hot, while others offer a cool canopy of alders and oaks. The trail can also be overgrown in places, so long sleeves and pants might be beneficial.
Many hikers recommend starting at Switzer Falls and hiking downhill towards Hahamongna Watershed. This direction conserves energy as it avoids the steep, exposed, and often hot ascents that characterize the sections leading up to Switzer Falls when hiking in the opposite direction.
You'll experience the beautiful 15-meter cascade of Switzer Falls. The trail also features a lovely riverside setting, a mix of alders and oaks, and wildflowers like yellow evening primrose and yuccas. You'll pass by the Oakwilde Trail Camp and a Picnic area & Arroyo Seco. Keep an eye out for historic remnants of Switzer's Camp, an old resort that burned down, including crumbled foundations of a miniature stone chapel.
The trail conditions can vary. After heavy rains, water crossings along the Arroyo Seco can be high, and sections of the trail may become muddy and slippery. Proper waterproof hiking shoes are advisable, especially during wetter seasons. Some areas can also be overgrown, and near Oakwilde, the trail might not always be clearly marked.
Given the trail's length and varied conditions, you should pack plenty of water (especially for exposed sections), snacks, sun protection (hat, sunscreen), and appropriate layers of clothing. Sturdy hiking boots are essential, and trekking poles can be helpful for stability, particularly on descents or river crossings. A map or GPS device is also recommended for navigation.
Yes, the Gabrielino Trail holds significant historical importance as it was the first trail designated in the National Recreational Trails Program. It also passes by the ruins of Switzer's Camp, a popular resort from the early 20th century, adding a layer of historical intrigue to your hike.
The trail offers a mix of shaded and exposed sections. Portions along the Arroyo Seco riverbanks are well-shaded by alders and oaks, providing a cool canopy. However, other areas, particularly the last couple of miles leading to Switzer Falls when hiking from Hahamongna, can be quite exposed to the sun and get very hot.
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