4.8
(46)
772
hikers
2
hikes
Dog friendly hiking trails in Hood Mountain Regional Park traverse a diverse landscape within the Mayacamas Mountains, offering over 19 miles of paths. The park features mixed-conifer, oak, and Pacific Madrone forests, alongside open meadows and unique pygmy forests. Hikers can explore varied terrain, including the headwaters of Santa Rosa Creek and elevations leading to viewpoints over Sonoma and Napa counties. The area provides a range of hiking experiences, from gentle paths to more challenging climbs.
Last updated: October 13, 2026
5
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
22.2km
06:10
430m
370m
Embark on a difficult hike along the Bay Area Ridge Trail from Spring Lake to Trione-Annadel State Park, a challenging 13.8-mile (22.2 km) route. You will navigate varied terrain, transitioning from open grassy hillsides to dense oak woodlands and conifer forests. The trail offers a rewarding experience, with a total elevation gain of 1399 feet (426 metres) that will take you approximately 6 hours and 9 minutes to complete. Keep an eye out for the shimmering waters of Spring Lake as you begin, and later, the scenic Lake Ilsanjo nestled within Trione-Annadel State Park, known for its unique volcanic rock formations.
Before you head out, be aware that this trail is popular with mountain bikers, so stay alert on shared paths. While there are no specific warnings about snow or road closures, you should always check local park information for current conditions, especially regarding parking and trailhead access. Be mindful of potential wildlife encounters with rattlesnakes, mountain lions, and ticks, and learn to identify and avoid poison oak along the route. Planning your visit during cooler months might enhance your experience.
This segment of the Bay Area Ridge Trail is notable for its rich natural environment, particularly within Trione-Annadel State Park. During spring, the park comes alive with a vibrant display of wildflowers, including lupines and iris, adding splashes of color to your journey. You might also discover shiny black obsidian shards on the ground, a fascinating hint at the area's volcanic past and its long history of human activity. This trail offers a deep dive into Sonoma County's diverse landscapes and geological heritage.

3
hikers
4.03km
01:04
40m
40m
Embark on an easy hike around Lake Ralphine, a pleasant 2.5 miles (4.0 km) loop that takes about 1 hour and 4 minutes to complete. You will experience a gentle elevation gain of 146 feet (45 metres) as you explore the area. The route offers picturesque views of both Lake Ralphine and Spring Lake, with the Sullivan Ridge Trail winding through areas dotted with thick oak trees and moss-covered boulders, providing a serene natural backdrop.
For your visit, you will find convenient parking available at both Howarth Memorial Park and Spring Lake Regional Park, making access straightforward. The trail system is known for its accessibility, particularly the paved Spring Lake Loop, which is suitable for various modes of travel. This makes it an ideal spot for a relaxed outing, whether you are walking or using other mobility aids.
This trail offers a diverse blend of urban park amenities and natural beauty, allowing you to spot over-wintering gulls, ducks, and various woodland birds near the lakes. The route seamlessly connects Howarth Memorial Park, Spring Lake Regional Park, and Trione-Annadel State Park, providing a continuous outdoor adventure and a chance to explore a wider network of trails in the region.
5.0
(1)
7
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
23
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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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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The Ridge Trail is a popular trail in Trione-Annadel State Park. The flowy single track follows a ridge as it leads you up some switchbacks.
1
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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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Trail around the southern perimeter of Annadel State Park to Bennet Mountain
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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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This guide features four distinct dog-friendly hiking routes within or near Hood Mountain Regional Park. These trails offer a range of experiences, from easy loops to more challenging long-distance hikes.
Yes, for a more relaxed outing with your dog, consider the Howarth Memorial Park – West Saddle Dam loop from Spring Lake Park, which is an easy 6.8 km route. Another great option is the Lake Ralphine Loop via Sullivan Ridge and Spring Lake Trail, an easy 4 km loop, perfect for a shorter stroll.
The park offers diverse terrain, from relatively flat paths around lakes to more rugged and strenuous climbs within the Mayacamas Mountains. You'll find trails winding through mixed-conifer, oak, and Pacific Madrone forests, as well as open meadows and unique pygmy forests. Some routes may involve navigating across creeks.
For experienced hikers and their canine companions looking for a challenge, the Bay Area Ridge Trail: Spring Lake to Trione-Annadel State Park offers a difficult 22.2 km journey with significant elevation changes, providing a rewarding long-distance experience.
Spring and fall generally offer the most pleasant hiking conditions with milder temperatures, which are ideal for dogs. Summers can be hot, so early morning or late afternoon hikes are recommended, and always bring plenty of water for both yourself and your dog. Winter can bring rain, making some trails muddy.
The komoot community highly rates the trails in this area, with an average score of 4.8 stars. Reviewers often praise the diverse landscapes, the opportunity for both challenging and easy walks, and the natural beauty that makes for a great outing with their dogs.
While the specific routes in this guide may not directly lead to all of them, Hood Mountain Regional Park itself is known for stunning features like Gunsight Rock, offering panoramic views of Sonoma and Napa counties, and the Hood Mountain Summit, the highest peak in the Mayacamas Mountains. The park also features unique pygmy forests and the headwaters of Santa Rosa Creek.
Water is generally not available in the park, so it is critical to bring ample water for both yourself and your dog, especially on longer or more strenuous hikes. Plan accordingly to ensure your dog stays hydrated.
Yes, several routes in this guide are circular, allowing for convenient out-and-back experiences without retracing your steps. For example, the Lake Ralphine Loop via Sullivan Ridge and Spring Lake Trail is a great circular option for an easy walk.
Always check current park conditions, as some areas may experience partial closures due to past wildfire damage. Bring plenty of water, as it's not available in the park. Be prepared for varied terrain, from easy paths to strenuous climbs, and ensure your dog is on a leash as per park regulations.


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