4.3
(26)
291
riders
34
rides
Touring cycling in Trione-Annadel State Park offers diverse landscapes across its over 5,000 acres, featuring hilly terrain, expansive meadows, and northern oak woodlands. The park's geological past is evident in its volcanic rock formations and outcrops. Lake Ilsanjo, a 26-acre man-made lake, and seasonal streams add to the natural features. This varied environment provides a range of unpaved and multi-use trails suitable for touring cyclists.
Last updated: May 11, 2026
12
riders
21.3km
01:19
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
7
riders
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
2
riders
75.4km
04:27
350m
350m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
6
riders
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
6
riders
13.1km
00:49
110m
110m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Well maintained paved trail that runs along the border of the reservoir. The trail is popular with walkers, runners, and cyclists, so make sure to be respectful to other trail users!
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Spring Lake Park is a 320-acre park that has miles of trails, a large reservoir, and a beach. There is a paved path that loops around the reservoir, as well as some single and double track.
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The Santa Rosa Creek Reservoir is a popular outdoor destination in Santa Rosa. The reservoir was created by a nearby dam.
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This expansive 138-acre community park offers ample parking and restrooms and is a popular starting and ending point for local cyclists. There are plenty of outdoor activities, with the park boasting serene Lake Ralphine for fishing and boating, a softball field, tennis and pickleball courts, inviting picnic areas, and innovative playground structures. There is also a small amusement area with train rides for kids. It is a great gathering spot for families, with miles of trails to explore.
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The historic Wohler Road Bridge is a majestic steel, three-span Parker through-truss bridge that gracefully spans the Russian River. Built in 1922 by the renowned American Bridge Company, this iconic structure connects Westside Road and Eastside Road, two of the most scenic routes in wine country.
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Korbel Delicatessen & Market is a lovely spot surrounded by tall Redwoods at the Korbel Winery. It offers a great selection of meats, cheeses, bread, crackers, sandwiches to order, and other picnic items, as well as a fantastic outdoor patio. It is the perfect spot to stop for lunch during a beautiful ride through wine country.
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Leafy park along the west shore of the large Santa Rosa Creek Reservoir, with good running trails around the water and through the meadows and shaded groves
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Reservoir at the foot of Annadale State Park with a great trail system around the lake, connecting into the large park, and on trails into Santa Rosa along creeks.
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Trione-Annadel State Park offers a variety of touring cycling routes, with over 35 options recorded on komoot. These routes cater to different skill levels, including 13 easy, 14 moderate, and 12 difficult paths.
The park features diverse terrain, including hilly sections, expansive meadows, lush grasslands, and northern oak woodlands. You'll also encounter volcanic rock formations and outcrops, remnants of the park's geological past. While some routes are unpaved, they are generally suitable for touring bicycles, though some challenging sections may require dismounting.
Yes, there are several easy routes perfect for beginners or families. A popular choice is the Howarth Memorial Park – Santa Rosa Swimming Lagoon loop from Montgomery Village, which is 8.4 miles (13.5 km) long. Another accessible option is the Santa Rosa Swimming Lagoon – Howarth Memorial Park loop from Montgomery Village, covering 5.4 miles (8.6 km) through urban parks and natural areas.
The park is rich in natural beauty. You can explore Lake Ilsanjo, a 26-acre man-made lake, and seasonal streams. Volcanic rock formations are prominent throughout. The park also features diverse ecosystems, including northern oak woodlands and chaparral. For specific trails, consider exploring the Warren Richardson Trail or the Canyon Trail.
From early spring to early summer, particularly April and May, the park is vibrant with abundant wildflowers, especially around Lake Ilsanjo. Winter months offer the chance to see seasonal waterfalls and rushing creeks. The park's dynamic environment makes it enjoyable across seasons, but spring offers a spectacular display of nature.
Yes, cyclists must adhere to certain rules. Bicycles are permitted on all designated multi-use trails and fire roads, but they are not allowed on pedestrian-only trails. E-bikes are prohibited. There is a maximum speed limit of 15 mph, and cyclists must yield to horses.
Yes, many routes in the park are designed as loops, offering a complete touring experience without retracing your path. Examples include the Spring Lake Park – Spring Lake Park loop from Los Guilicos and the Santa Rosa Swimming Lagoon – Howarth Memorial Park loop from Montgomery Village.
The touring cycling routes in Trione-Annadel State Park are highly rated by the komoot community, with an average score of 4.2 stars from over 25 reviews. Cyclists often praise the diverse landscapes, the variety of trails for different skill levels, and the natural beauty of the oak woodlands and Lake Ilsanjo.
Yes, the Santa Rosa Creek and West County Trail Loop is a notable moderate route that connects two major trails, providing extensive views of the surrounding area and extending your touring opportunities beyond the immediate park boundaries.
While specific routes may vary, Santa Rosa CityBus and Sonoma County Transit provide public transportation options that can get you to the vicinity of Trione-Annadel State Park. It's advisable to check their current schedules and routes for the most up-to-date information on reaching the park's entrances.
Yes, the park offers 12 routes classified as difficult, providing a challenge for experienced touring cyclists. These routes often feature significant elevation changes and more technical sections, allowing for a rigorous and rewarding ride through the park's hilly terrain.
Wildlife sightings are common in the park. You might encounter black-tailed deer, western gray squirrels, coyotes, skunks, and opossums. The park is also home to 130 different bird species, particularly around Ledson Marsh, and occasionally bobcats and mountain lions are seen.


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