4.9
(41)
1,017
hikers
52
hikes
Hikes around Santa Rosa explore a landscape of oak woodlands, rolling hills, and expansive wetlands. The region is characterized by a network of trails within several state and regional parks, offering routes through redwood groves and around reservoirs. The terrain varies from flat, paved paths along creeks to moderate ascents over volcanic rock formations, providing a range of hiking experiences.
Last updated: April 26, 2026
9
hikers
21.3km
06:02
470m
470m
Embark on a difficult hiking adventure along the Lake Ilsanjo and Buick Meadow Loop via Canyon Trail, a route spanning 13.2 miles (21.3 km) with a significant 1536 feet (468 metres) of elevation gain. This challenging journey typically takes around 6 hours and 1 minute to complete. As you hike, you will experience diverse landscapes, transitioning from dense forests of Douglas-fir, redwood, and oak into open meadows. The Canyon Trail itself offers pleasant shade from alders, redwoods, and arching bay trees. A serene highlight is Lake Ilsanjo, a 26-acre man-made lake, providing a peaceful spot to pause and enjoy the surroundings.
Before you set out, remember that this route is located within Trione-Annadel State Park. Parking is generally available, but it is always wise to check the park's official website for current conditions and any specific alerts before your visit. Be aware of potential hazards common in the park, such as poison oak, rattlesnakes, mountain lions, and ticks, and plan accordingly. Ensuring you have up-to-date information will help you have a smooth and safe experience.
This loop offers a rewarding experience for experienced hikers seeking a longer adventure within Trione-Annadel State Park. Beyond the main trail, you might spot vibrant wildflowers like golden poppies and lupines, especially during spring, adding to the natural beauty around Lake Ilsanjo. The park's varied terrain, from shaded canyons to open vistas, makes this a notable option for those looking to explore the region's natural diversity.
10
hikers
8.47km
02:23
170m
170m
Embark on the Rough Go Trail Loop via Canyon Trail for a moderate hiking experience through Trione-Annadel State Park. You will cover 5.3 miles (8.5 km) and gain 566 feet (173 metres) in elevation, typically taking around 2 hours and 22 minutes to complete. The route offers a diverse landscape, transitioning from rocky, technical sections with loose rock to smoother, flowy singletrack, and features a bench with views of Santa Rosa and Bennett Valley as you climb towards Lake Ilsanjo.
Before you head out, be aware that the trail's character can change significantly with weather conditions and seasons. It may become muddy and slippery, especially after rain, so check current conditions before your visit. This is a multi-use trail, meaning you might encounter cross-country runners and other riders, so be mindful of shared spaces.
This loop guides you through a mix of wooded areas and open meadows, providing a constantly changing backdrop for your hike. The trail's varied terrain and scenic points, including the notable Lake Ilsanjo, make it a rewarding choice for those seeking a dynamic outdoor adventure within the park.

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2
hikers
12.3km
03:26
240m
240m
Embark on the Canyon, Rough Go and Cobblestone Loop, a moderate hiking route spanning 7.6 miles (12.3 km) with an elevation gain of 788 feet (240 metres). This trail offers a challenging yet rewarding experience, winding through the diverse flora and fauna of Annadel State Park. You will encounter rugged and technical terrain, especially on the aptly named Rough Go Trail known for its rocky surface, and pass by the notable Lake Ilsanjo, making for an engaging hike that typically takes around 3 hours and 25 minutes.
When planning your visit, be prepared for varied inclines and rocky sections, as these trails are considered some of the more technical within Annadel State Park. Parking is generally available at the trailheads, providing convenient access to the route. Always check local conditions before heading out to ensure a smooth and enjoyable hiking experience.
This loop is an excellent way to explore the natural beauty of Annadel State Park, where you might spot deer, turkeys, and various raptors. The trails are popular with mountain bikers, so expect shared use and be mindful of others on the path. It offers a unique opportunity to experience some of the park's more rugged and scenic sections.
4
hikers
5.73km
01:42
170m
160m
You can enjoy an easy hiking experience on the Channel, North Burma, and Warren Richardson Loop, a route that winds through Trione-Annadel State Park. This pleasant loop covers 3.6 miles (5.7 km) and involves a gentle elevation gain of 548 feet (167 metres). You can expect to complete this hike in about 1 hour and 42 minutes, making it a great option for a relaxed outing. As you walk, keep an eye out for the tranquil Oakmont Reclamation pond and the historic Stone Bridge connector, which add visual interest to your journey through the varied landscapes of Sonoma County. The trail offers a refreshing escape into nature without being overly strenuous.
Planning your visit to this trail is straightforward, as it is easily accessible in Santa Rosa, California. You will generally find parking available near the trailhead, which makes starting your adventure convenient. Before heading out, it is always a good idea to check local conditions, as weather can affect the trail surfaces and your overall experience. This ensures you are prepared for any changes and can enjoy your hike safely and comfortably.
This loop trail is notable for combining several distinct paths, including sections of the North Burma Trail and Channel Trail, to create a diverse route. It also features a junction with Steve's S Trail, giving you a glimpse into the interconnected network of trails within the park. This design allows you to experience different facets of the park's natural environment and offers a varied hiking experience that feels fresh throughout the journey.
4
hikers
11.8km
03:16
190m
210m
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 soon opens up to expansive meadows and oak woodlands, offering panoramic views of Lake Ilsanjo, before transitioning to the North Burma Trail with its mix of narrow, rocky singletrack and faster-paced segments.
Trione-Annadel State Park provides ample parking and easy access to its extensive trail system, making your visit straightforward. While exploring, be aware of potential hazards such as poison oak, rattlesnakes, mountain lions, and ticks, especially if you venture off the main path. Always check local conditions before you head out to ensure a safe and enjoyable hike.
This loop is particularly notable for its vibrant seasonal displays. From early March to late May, you can expect to see abundant wildflowers lining the paths. Keep an eye out during spring for the rare redwood orchids, adding a unique botanical highlight to your outdoor experience in this diverse California landscape.
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Trail around the southern perimeter of Annadel State Park to Bennet Mountain
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Within this park, there are extensive miles of trails available for hiking, biking, and horseback riding. The landscape comes alive with an array of wildflowers, particularly vibrant during spring. Notably, Lake Ilsanjo stands as a park highlight, offering opportunities for fishing and often attracting anglers.
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Get off the wide forest road onto the quieter hiking trails
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Lake Ilsanjo is a hidden gem in Annadel State Park: it's a small, quiet lake. There are many trails and even some swimming spots.
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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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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 trail that crosses over the middle of the park to the west, and to residential paved roads that circle the entire park.
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Yes, many parks in the Santa Rosa area welcome dogs on leashes. Taylor Mountain Regional Park and the paved trails at Spring Lake Regional Park are popular choices for hiking with canine companions. However, dogs are generally not permitted on the trails in Trione-Annadel State Park or Armstrong Redwoods State Natural Reserve to protect the wildlife and sensitive habitats. Always check the specific park's regulations before you go.
For an easy, accessible walk, the Languna Wetland Preserve loop is a great choice. This flat, 3-mile (4.8 km) trail is perfect for all ages and offers a unique opportunity to see local birdlife. Another excellent option for families is exploring the gentle, paved paths at Spring Lake Regional Park.
Sugarloaf Ridge State Park is your best bet for seeing a waterfall. After winter rains, a 25-foot waterfall becomes a highlight on the trails. The park offers a variety of routes that lead to this seasonal feature, providing a rewarding experience for those willing to explore its canyons.
For a more strenuous workout with rewarding views, head to Hood Mountain Regional Park. The trails here involve significant elevation gain, climbing to the highest peak in the Mayacamas Mountains. The trek to Gunsight Rock is particularly challenging but offers breathtaking panoramic views of the Sonoma Valley.
Absolutely. Armstrong Redwoods State Natural Reserve, a short drive from Santa Rosa, is a must-visit. The reserve features easy, flat trails that wind through a serene grove of ancient, towering coast redwoods. It's an awe-inspiring experience and very accessible for most visitors.
Spring and fall offer the most pleasant hiking conditions with mild temperatures. Spring is especially beautiful, with hills turning green and wildflowers blooming throughout the regional parks. Summer can be quite hot, so early morning hikes are recommended. Winter brings cooler weather and rain, which replenishes the creeks and waterfalls, offering a different kind of beauty.
Yes, many regional and state parks require a fee for parking or entry. For example, Trione-Annadel State Park and Sugarloaf Ridge State Park have day-use fees. Sonoma County Regional Parks, like Taylor Mountain and Spring Lake, typically have a parking fee. It's best to bring cash, though some locations may offer credit card payment. For specific fee information, check the official park websites before your visit.
Trione-Annadel offers a vast network of trails through oak woodlands and around Lake Ilsanjo, with a mix of sun and shade. Its terrain is known for its rocky, volcanic soil. Taylor Mountain, in contrast, is characterized by more open grasslands and steep climbs that lead to expansive panoramic views of Santa Rosa and the surrounding plains. While both are local favorites, Taylor Mountain is often chosen for its vistas, whereas Annadel is prized for its varied, rolling landscape.
The trails are highly regarded by the komoot community, with an average rating of 4.9 stars. Hikers frequently praise the diversity of the landscape, from the redwood groves at Armstrong Redwoods to the panoramic views from Taylor Mountain. The well-maintained trails within the regional park system are also a common point of positive feedback.
Yes, loop hikes are very common in Santa Rosa's parks. Trione-Annadel State Park has numerous options, such as the moderate Lake Ilsanjo Loop, which is a popular 5.2-mile (8.3 km) circuit. Spring Lake Regional Park also features a well-known paved loop around the reservoir, perfect for a shorter, easier walk.
It's essential to bring plenty of water, especially during the warmer months as many trails are exposed to the sun. Sunscreen, a hat, and sunglasses are also crucial. Wear sturdy hiking shoes, as some trails can be rocky. It's also wise to pack layers of clothing, as weather can change, and some canyon or forested trails can be significantly cooler than open ridges.


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