4.6
(5047)
5,593
runners
01:33
11.9km
440m
Running
Jog the difficult 7.4-mile Bald Mountain Loop in Sugarloaf Ridge State Park for 1431 feet of elevation gain and 360-degree summit views.
Last updated: February 26, 2026
Waypoints
Start point
Parking
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3.42 km
Highlight (Segment) • Trail
Tip by
7.79 km
Highlight • Summit
Tip by
11.9 km
End point
Parking
Way Types & Surfaces
Way Types
10.3 km
1.56 km
102 m
Surfaces
10.4 km
1.56 km
< 100 m
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Elevation
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Friday 8 May
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This route was planned by komoot.
The Bald Mountain Loop is located within Sugarloaf Ridge State Park. The main trailhead is typically accessible from the park's primary parking area. There is ample parking available, but it's advisable to arrive early on weekends or during peak season to secure a spot.
Sugarloaf Ridge State Park charges a day-use fee for vehicle entry. This fee helps maintain the park's facilities and trails. No special permits are required for jogging the Bald Mountain Loop, but always check the official California State Parks website for the most current fee information and regulations before your visit.
The best time to jog the Bald Mountain Loop is generally during the spring and fall. Spring offers lush greenery and wildflowers, while fall provides cooler temperatures and clear views. While the trail is noted for staying dry even after rain, summer can be very hot, and winter might bring colder, potentially wet conditions, though the trail itself drains well.
Dogs are generally allowed in Sugarloaf Ridge State Park on leash in developed areas and on paved roads, but often have restrictions on dirt trails to protect wildlife. Please check the current regulations on the Sugarloaf Ridge State Park website or at the park entrance regarding dogs on the Bald Mountain Loop trail specifically.
The terrain on this loop is varied and challenging. You'll start in open meadows, transition into oak forests with switchbacks, and then encounter drier manzanita scrub. The route includes dirt roads, a paved section, and a ridgeline with short but steep and aerobically demanding sections. The descent becomes more wooded.
The absolute highlight of this route is the Bald Mountain Summit, which offers perfect 360-degree panoramic views. On a clear day, you can see vineyards, the Napa and Sonoma valleys, Berkeley, Oakland, Mt. Tamalpais, the San Francisco Bay, and even the snowy Sierras. You'll also pass through the scenic Brushy Peaks Trail section.
Given its 'difficult' rating, a distance of nearly 12 km, and an elevation gain of over 430 meters, this loop is considered strenuous. It features significant uphill climbs and steep sections, making it less suitable for beginner joggers. Prior experience with challenging trails and a good level of fitness are recommended.
For this challenging jog, you should bring plenty of water, especially on warmer days, as there are no water sources directly on the trail. Wear appropriate jogging shoes with good grip, sun protection (hat, sunscreen), and layers of clothing, as temperatures can change. A map or GPS device is also recommended.
Yes, the route incorporates sections of several other trails within Sugarloaf Ridge State Park. You'll find yourself on parts of the Brushy Peaks Trail, Bald Mountain Trail, Gray Pine Trail, Meadow Trail, and Lower Bald Mountain Trail, among others, as you navigate the loop.
Sugarloaf Ridge State Park itself is primarily a natural area with limited amenities. However, the park is located near the Sonoma Valley, where you can find various cafes, restaurants, and other services in nearby towns like Kenwood or Glen Ellen, just a short drive away.
Sugarloaf Ridge State Park is home to diverse wildlife. While jogging, you might spot deer, various bird species including raptors, and smaller mammals. Keep an eye out for snakes, especially during warmer months. Always observe wildlife from a distance and do not disturb them.