Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
United States
California
Modoc County

Summit Trail

Hard

2.7

(18)

84

hikers

Summit Trail

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

Modoc National Forest

Waypoints

A

Start point

Parking

Get Directions

1

74 m

Pepperdine Trailhead

Highlight • Trail

Summit Trail is a multi-day trek across the western slopes of the South Warner Mountains. The northern trailhead is located at Pepperdine Campground, on the edge of the South Warner Wilderness.

Please do not park in a campsite unless you are planning to spend the night there. Instead park at the nearby lot adjacent to the campground. Campsites are $15/night, no other fees are collected for parking.

Tip by

2

8.35 km

Cottonwood Lake

Highlight • Lake

Stop for a while at Cottonwood Lake to take in the peace and quiet of this remote mountain scenery.

Tip by

3

9.23 km

Patterson Lake

Highlight • Lake

Warren Peak rises out of the quarter-mile wide Patterson Lake. This lake makes an excellent turnaround point on a day hike, or a resting spot before the final push to the summit.

Tip by

4

9.95 km

Warren Peak

Highlight • Summit

Views in all directions can be appreciated from the Patterson Saddle. There is no official trail up the steep, loose slope to the peak, so use extreme caution if you plan to ascend.

Tip by

B

20.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

20.0 km

< 100 m

Surfaces

19.4 km

527 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Wednesday 1 July

22°C

3°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Frequently Asked Questions

How long does it typically take to complete the Summit Trail?

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.

What are the parking options for the Summit Trail?

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.

Is this trail suitable for beginners?

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.

What is the terrain like on the route?

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.

When is the best time of year to hike the Summit Trail?

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.

Are dogs allowed on the Summit Trail?

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.

Are there any permits or entrance fees required for the South Warner Wilderness?

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.

What notable features or landmarks will I encounter along the way?

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.

Does the trail connect with other hiking paths?

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.

What should I bring for a hike on this difficult trail?

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.

What is the best strategy for tackling the significant elevation gain?

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.

Nearby routes

Easy

1

Modoc Wildlife Refuge Auto Tour Loop

01:09h

4.54km

10m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy