Mount Madonna County Park loop via Redwood Retreat Road
Mount Madonna County Park loop via Redwood Retreat Road
3.5
(23)
97
riders
Mount Madonna County Park loop via Redwood Retreat Road
01:59
21.1km
510m
Gravel riding
Embark on a challenging gravel biking adventure through Mount Madonna County Park, where dense redwood forests cast long shadows, creating a serene atmosphere. As you climb, keep an eye out for vineyards and charming cottages along Redwood Retreat Road, eventually reaching the summit for expansive views of Monterey Bay and the Santa Clara Valley. This difficult 13.1-mile (21.1 km) loop involves a significant 1672 feet (510 metres) of elevation gain, typically taking around 1 hour and 58 minutes to complete. The unpaved sections offer a great dual sport riding experience with minimal traffic.
Prepare for a demanding ride; this route is considered difficult and requires advanced gravel biking skills, especially when navigating transitions between packed and loose surfaces, tree roots, and ruts. You will encounter a notably steep climb on Redwood Retreat Road as it ascends towards Mt. Madonna Road, which can be quite strenuous. The park is dog-friendly on all its trails, so your canine companion can join you. Additionally, Mount Madonna County Park provides amenities such as campgrounds and yurts if you plan an extended stay.
This trail stands out for its unique blend of natural beauty and historical remnants. The park is home to the ruins of a grand mansion built by Henry Miller, a 19th-century cattle baron, adding a layer of historical intrigue to your ride. You might also spot the park's resident herd of white fallow deer, descendants of Miller's private collection, roaming freely. The diverse ecosystem, from redwoods to open vistas, makes this a notable destination for those seeking both a physical challenge and a connection to local history and wildlife.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
1.95 km
Redwood Retreat Road
Highlight (Segment) • Trail
Tip by
10.3 km
Mount Madonna County Park
Highlight • Forest
Tip by
21.1 km
End point
Parking
Way Types & Surfaces
Way Types
10.4 km
7.29 km
3.22 km
119 m
< 100 m
Surfaces
11.4 km
7.29 km
2.40 km
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Elevation
Highest point (570 m)
Lowest point (90 m)
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Weather
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Today
Thursday 21 May
27°C
10°C
0 %
Additional weather tips
Max wind speed: 10.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
What is the overall difficulty and terrain like for this gravel biking route?
This route is considered a difficult and hard gravel ride, requiring very good fitness. You'll encounter diverse terrain, transitioning from packed gravel to loose gravel and dirt. Expect a one-lane road with tree roots, rocks, and ruts in some sections, demanding advanced riding skills. There's also a particularly steep climb on Redwood Retreat Road.
How long does it typically take to complete this gravel biking loop?
The tour data suggests an average duration of approximately 2 hours, but this can vary significantly based on your fitness level and how often you stop to enjoy the scenery. Given the challenging terrain and steep climbs, it's wise to allow for extra time.
What kind of scenery and notable features can I expect along the way?
The route offers stunning natural beauty, winding through dense redwood and cedar forests that create a quiet, almost otherworldly atmosphere. Along Redwood Retreat Road, you might see vineyards and picturesque cottages, as well as a tall waterfall. From the summit of Mount Madonna County Park, especially on a clear day, you'll be treated to expansive views of both Monterey Bay and the Santa Clara Valley.
Is this gravel biking route suitable for beginners?
No, this route is generally not recommended for beginners. It's classified as a 'difficult' ride requiring 'very good fitness' due to steep climbs, varied terrain including loose gravel and dirt, and sections with roots and ruts. Some parts may even require pushing your bike.
Where can I park to access this loop?
While specific parking details for this exact starting point aren't provided, Mount Madonna County Park offers various parking areas. It's advisable to check the park's official website for the most current information on designated parking lots near the trailhead.
Are dogs allowed on this gravel biking route?
Yes, Mount Madonna County Park is known for being dog-friendly on all its trails. Please ensure your dog is on a leash and you follow all park regulations regarding pets.
Do I need any permits or have to pay an entrance fee for Mount Madonna County Park?
Access to Mount Madonna County Park typically involves an entrance fee. It's best to check the official Santa Clara County Parks website for current fee schedules and any specific permit requirements for activities like gravel biking.
When is the best time of year to ride this loop?
The trail can be enjoyed year-round, but spring and fall generally offer the most pleasant conditions with milder temperatures. Summer can be hot, and winter might bring rain, making some unpaved sections muddy or slippery. Always check weather conditions before you go.
Does this route intersect with other well-known paths?
Yes, the route also passes through sections of the Ridge Trail, Mount Madonna Road, and the Bay Area Ridge Trail - 03 - South Bay.
Are there any amenities available at Mount Madonna County Park?
Yes, Mount Madonna County Park provides a range of amenities, including campgrounds and yurts, which could be useful if you're planning an extended visit.
What should I bring for a gravel bike ride on this trail?
Given the challenging nature and varied terrain, it's recommended to bring plenty of water, snacks, a repair kit for your bike, appropriate safety gear (helmet, gloves), and layers of clothing. A GPS device or a downloaded map is also advisable, as some sections are less trafficked.