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Routes
Hiking trails & Routes
United States
California
Sonoma County
Santa Rosa

Channel, North Burma, and Warren Richardson Loop

Moderate

2.8

(20)

49

hikers

Channel, North Burma, and Warren Richardson Loop

03:16

11.8km

190m

Hiking

Embark on the moderate Channel, North Burma, and Warren Richardson Loop, a 7.3-mile (11.8 km) hike that will have you gaining 639 feet (195 metres) over approximately 3 hours and 15 minutes. You will begin your journey through a refreshing forest of Douglas-firs, bay trees, and towering redwoods. The trail…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

6.51 km

North Burma Trailhead at Warren Richardson

Highlight • Trail

Get off the wide forest road onto the quieter hiking trails

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2

7.15 km

Warren Richardson is the main, gradual gravel-paved fire road to the Lake Ilsanjo saddle from the north side of the park. Very pleasant riding in the shade of tall pine and fir trees.

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3

7.76 km

Water Tank Trail

Highlight • Trail

Short, useful connector trail

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4

10.4 km

Northern bike trail access to the main park road around the northern end of Annadel State Park

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5

11.5 km

Large state park east of Santa Rosa, with a nice paved park road hugging a half circle around the park's north side. It connects with gravel fire roads like Canyon …

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B

11.8 km

End point

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Way Types & Surfaces

Way Types

5.65 km

2.99 km

2.96 km

188 m

Surfaces

6.06 km

2.79 km

1.89 km

846 m

125 m

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Elevation

Elevation

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

Highest point (280 m)

Lowest point (100 m)

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Weather

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Today

Monday 18 May

27°C

13°C

0 %

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Max wind speed: 16.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Channel, North Burma, and Warren Richardson Loop?

The most common access point for this loop is the north entrance of Trione-Annadel State Park. You can find parking near the Annadel State Park - North Entrance, Channel Dr. Arriving early, especially on weekends, is recommended as parking can fill up.

Is this trail suitable for dogs?

No, dogs are generally not allowed on the trails within Trione-Annadel State Park, including the Channel, North Burma, and Warren Richardson Loop. It's always best to check the official park regulations before your visit.

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

The best time to hike this loop is from early March to late May when the park is known for its abundant displays of wildflowers. Spring offers pleasant temperatures and lush scenery. However, the trail can be enjoyed year-round, with fall offering cooler weather and changing foliage.

Do I need a permit or pay an entrance fee for Trione-Annadel State Park?

Trione-Annadel State Park typically has a day-use fee for parking. You can find the most current information on fees and any permit requirements by visiting the official California State Parks website for Trione-Annadel State Park.

What is the terrain like on the Channel, North Burma, and Warren Richardson Loop?

The loop offers diverse terrain. The Warren Richardson Trail is generally an easier gravel and dirt path that gradually climbs. The North Burma Trail features narrow singletrack with sections of protruding rocks and roots, especially in its lower third, requiring agile footwork. Overall, expect a mix of fire roads, singletrack, and some rocky, uneven sections.

What kind of scenery and views can I expect?

You'll experience a variety of landscapes, from forests of Douglas-firs, bays, and redwoods to open meadows and mixed oak woodlands. The Warren Richardson Trail offers wonderful panoramic views of Lake Ilsanjo and the surrounding mountains. The North Burma Trail also provides views of meadows, and the park is known for its wildflowers in spring.

Are there any notable points of interest along the way?

Yes, the loop passes by significant features within Trione-Annadel State Park. You'll encounter the North Burma Trailhead at Warren Richardson, the Warren Richardson Trail - Steve's S Trail junction, and the Water Tank Trail. Lake Ilsanjo is also a prominent landmark and a great spot for a break.

What wildlife might I encounter on the trail?

Trione-Annadel State Park is home to various wildlife. While sightings are not guaranteed, you might see deer, various bird species, and smaller mammals. Hikers should be aware of potential hazards like rattlesnakes, mountain lions, and ticks.

Does this route intersect with other trails in the park?

Yes, this loop is part of the extensive Trione-Annadel State Park trail system. The route utilizes sections of the Channel Trail, Warren Richardson Trail, and North Burma Trail, which connect to many other paths within the park.

What's an insider tip for hiking this loop?

Consider hiking the loop in a direction that tackles the more significant climb on the generally easier Warren Richardson Trail first. This allows you to get the elevation gain out of the way on a smoother path before encountering the more technical, rocky, and rooted sections of the North Burma Trail, which can be more challenging on a descent.

Is there water available on the trail?

It's always recommended to carry sufficient water for your hike, as reliable water sources directly on the trail may be limited or seasonal. Check with the park visitor center for information on water availability before you go.

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