2.7
(18)
84
hikers
06:18
20.0km
830m
Hiking
The Summit Trail in Modoc County, California, is a demanding hike that promises a true mountain experience. You'll traverse diverse landscapes on your way to the summit, passing by the tranquil waters of Cottonwood Lake and Patterson Lake. The trail offers a continuous, challenging ascent, culminating in expansive views from Warren Peak, making it a rewarding journey for those who love a good climb.
Planning your visit requires an early start to tackle the 12.4-mile (20.0 km) route, which includes 2708 feet (825 metres) of elevation gain and typically takes about 6 hours and 18 minutes. Ensure you bring sufficient water and provisions, as this difficult trail has no services en route. Confirm trailhead parking availability and current conditions before heading out.
This trail stands out for its significant elevation profile and the promise of panoramic vistas from Warren Peak, a major landmark in the region. It's an excellent choice for experienced hikers looking for a substantial day hike in Modoc County, offering a deep immersion into the area's natural beauty and a true test of stamina.
Last updated: June 9, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
South Warner Wilderness
Waypoints
Start point
Parking
Get Directions
74 m
Highlight • Trail
Tip by
8.35 km
Highlight • Lake
Tip by
9.23 km
Highlight • Lake
Tip by
9.95 km
Highlight • Summit
Tip by
20.0 km
End point
Parking
Way Types & Surfaces
Way Types
20.0 km
< 100 m
Surfaces
19.4 km
527 m
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Elevation
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Weather
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Today
Wednesday 1 July
22°C
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Additional weather tips
Max wind speed: 14.0 km/h
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This route was planned by komoot.
This is a challenging hike, and most hikers should plan for approximately 6 to 7 hours to complete the entire 20 km route. This duration accounts for the significant elevation gain of over 800 meters and allows for breaks to enjoy the scenery.
The primary access point is the Pepperdine Trailhead. Parking availability can vary, especially on weekends, so it's advisable to arrive early to secure a spot. There are no shuttles mentioned for this specific trail.
No, the Summit Trail is rated as 'difficult' due to its length (nearly 20 km) and substantial elevation gain (over 800 meters). It features steep sections and rugged terrain, making it more appropriate for experienced hikers with good physical fitness.
The terrain is diverse and challenging. You can expect rocky ascents, forested paths in the lower sections, and exposed ridges as you gain elevation. Sections may involve careful footwork, and hiking poles are recommended for stability, especially on descents. You might also cross through meadows and near alpine lakes.
The best time to hike is typically from late spring to early fall when the weather is most favorable and the trail is free of snow. Summer offers wildflowers and warmer temperatures, but be prepared for sun exposure on higher, open sections. Always check current weather conditions before heading out.
Yes, dogs are generally permitted on trails within the South Warner Wilderness. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out all pet waste.
While there are generally no entrance fees for the South Warner Wilderness itself, specific permits might be required for certain activities like overnight camping or campfires. It's always best to check the latest regulations with the local forest service office before your visit to ensure compliance.
The trail offers several points of interest. You'll pass by the scenic Cottonwood Lake and Patterson Lake. The ultimate highlight is reaching Warren Peak, which provides panoramic views of the surrounding wilderness.
Yes, the route primarily follows the Summit Trail but also passes through sections of the Owl Creek Trail and the Upper Cottonwood Trail for a portion of its length.
Given its difficulty and length, essential gear includes plenty of water (there is no reliable water source on the trail), high-energy snacks, sturdy hiking boots, layers of clothing for changing weather, sun protection, a map and compass or GPS device, and a first-aid kit. Hiking poles are highly recommended for the steep and rocky sections.
To manage the over 800 meters of elevation gain, a steady pace is crucial. Break up the ascent with short, regular breaks to conserve energy. Starting early in the day is also advisable, especially during warmer months, to avoid the midday sun and allow ample time to complete the hike before dark.
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