Alto Bowl Open Space

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Trail Distance: 2.2 miles
Time Estimate: 45 min +
Elevation Gain: 250 feet
Leash Rule: On & Off Leash
Difficulty: Moderate
Parking: Free
Route Type: Out-and-back
Restroom: No
Description

The Alto Bowl Open Space has a network of four trails and fire roads your pups can explore in furry freedom. Fido and Fifi can skip the leash as long as they remain under sight and voice control. The Alto Bowl trails are pawpular with area dog walkers, so sociable pups might even make some new friends. 

Your doggos will enjoy soaking up sunshine on these open green hilltops. Much of the trail is exposed, so check the weather before you embark. These breaks in the trees give some furrific views of Mount Tam, the lovely neighborhoods of Mill Valley, and the water and skyline beyond.

Parking can be a challenge at Alto Bowl. A few roadside spots are available on the northeastern corner at the end of Coach Road. There's also some pull-out parking along Camino Alto a few yards down from an access gate for the Bob Middagh Trailhead. There's no entrance fee (but also no restrooms or other facilities available). Note that the trails can be extremely muddy in winter and early spring.

For an easy 45-minute loop, set out from the Camino Alto pull-out parking area along the Bob Middagh Trail. You'll pass through stands of oak, bay, and buckeye trees before emerging into open grassland. In less than half-a-mile, you'll reach the Alto Bowl Fire Road (unmarked) and follow it until it dead-ends at a cul-de-sac. If you cross the wooden gate to the left, you'll be on Horse Hill Trail. Climb to the top of the hill and enjoy the view. Be sure to snap some dog pics (obviously). By the time you retrace your steps back to the car, you'll have traveled about 2.25 miles. 

To make the journey longer, continue downhill on the Horse Hill Fire Road before turning around. Or, once you're back to Camino Alto, cross over to catch the Octopus Trail and explore the larger Camino Alto Preserve; the trailhead is just a few yards north of Bob Middagh.

Trail Features
Easy Incline
Wildflowers, Scenic
Cautions & Considerations
No drinking water is available, so bring plenty for your whole pack. Pups who are seriously bothered by multi-dog environments might want to consider other options, and coyotes have also been spotted in the preserve. Make sure you have a leash for each dog in case you need it. (It's a park rule, actually!)
Address
387 Camino Alto
Mill Valley, CA 94941
Hours
Mon Open 24 Hours
Tue Open 24 Hours
Wed Open 24 Hours
Thu Open 24 Hours
Fri Open 24 Hours
Sat Open 24 Hours
Sun Open 24 Hours
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Address
387 Camino Alto
Mill Valley, CA 94941
Hours
Mon Open 24 Hours
Tue Open 24 Hours
Wed Open 24 Hours
Thu Open 24 Hours
Fri Open 24 Hours
Sat Open 24 Hours
Sun Open 24 Hours