Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
United States
California
Marin County
Mill Valley

Bob Middagh & Horse Hill Trail loop

Easy

4.7

(3018)

19,854

hikers

Bob Middagh & Horse Hill Trail loop

01:49

6.28km

170m

Hiking

If you're looking for an easy hike with big payoffs, the Bob Middagh & Horse Hill Trail loop is a fantastic option. This 3.9-mile (6.3 km) route, with 542 feet (165 metres) of elevation gain, offers stunning panoramic views of the San Francisco skyline, Richardson Bay, and Mount Tamalpais. You'll…

Last updated: June 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Camino Alto Open Space Preserve

Alto Bowl Open Space Preserve

Horse Hill Open Space Preserve

Waypoints

A

Start point

Parking

Get Directions

1

824 m

Azalea Connector Trail - Dead End Mill Valley

Highlight • Trail

To circumvent the still closed Alto tunnel hikers and bikers can either climb up the steep connection here to Camino Alto grade, or turn east a few yards earlier at …

Tip by

2

2.56 km

Pretty view of the SF skyline from the entrance to a vast trail and fireroad network, for long hikes into the Marin Hills and Mt Tam, some shared with mountain bikes.

Tip by

3

2.62 km

Bob Middagh Trail

Highlight (Segment) • Trail

Fine hiking trail, in part along a wide fire road, other sections narrow single tracks, connecting Camino Alto and Horse Hill Open Space Preserves

Tip by

B

6.28 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

3.22 km

1.99 km

1.05 km

Surfaces

2.19 km

1.99 km

1.18 km

854 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (130 m)

Lowest point (10 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Sunday 12 July

30°C

13°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Frequently Asked Questions

Where can I park to access the Bob Middagh & Horse Hill Trail loop?

While specific parking details aren't provided, the trail is located within the Horse Hill Open Space Preserve. Access points typically include trailheads within the preserve. It's advisable to check the official Marin County Parks website for the most current information on designated parking areas and any potential restrictions.

Is the Bob Middagh & Horse Hill Trail loop dog-friendly?

Yes, the Horse Hill Open Space Preserve generally allows dogs, but they must be kept on a leash to protect wildlife and ensure a pleasant experience for all visitors. Always check local regulations before your visit.

What is the best time of year to hike the Horse Hill Trail loop?

The trail is enjoyable year-round, but spring is particularly beautiful when wildflowers like lupine, blue-eyed grass, and Douglas iris are in bloom. Winter months can make parts of the trail muddy, so be prepared for potentially wet conditions.

Are there any permits or entrance fees required for the Horse Hill Open Space Preserve?

No, there are typically no permits or entrance fees required to access the Horse Hill Open Space Preserve. It is open to the public for recreational use. For any specific regulations, you can refer to the official marincounty.gov website.

What kind of views and natural features can I expect on the trail?

Hikers are treated to stunning panoramic views of the San Francisco skyline, Richardson Bay, and Mount Tamalpais. The preserve maintains an "Old California" ranch atmosphere, largely due to the presence of grazing horses. In spring, expect vibrant wildflowers, and keep an eye out for raptors like American kestrels and red-tailed hawks circling overhead.

What is the terrain like on the Bob Middagh & Horse Hill Trail loop?

The terrain is a mix of single-track trails and fire roads. It's generally considered easy, but some sections can become muddy during the winter. The path is well-maintained, offering a comfortable hiking experience.

Are there any notable features or highlights along the route?

Absolutely! A unique feature is the herd of grazing horses, which not only add to the scenic beauty but also help maintain the open space. The trail itself connects the Alto Bowl Preserve with the Camino Alto Preserve. You'll also pass by the Bob Middagh Trail, the Camino Alto OSP - Fire Road Trailhead, and the Azalea Connector Trail - Dead End Mill Valley.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several other trails. You'll find yourself on parts of the Mill Valley - Sausalito Path, Camino Alto Fire Road, Bob Midagh Trail, Escalon Fire Road, and Dollar Fire Road, among others, offering a varied hiking experience.

Is the Bob Middagh & Horse Hill Trail loop suitable for all fitness levels?

Yes, this loop is considered an easy hike, making it suitable for various fitness levels, including families and those looking for a relaxed outdoor experience. The elevation gain is moderate, and the paths are generally accessible.

Are there any facilities like restrooms or water available along the trail?

As this is an open space preserve, facilities like restrooms and water fountains are generally limited or non-existent directly on the trail. It's recommended to bring your own water and use facilities before or after your hike.

What should I bring for a hike on this loop?

For this easy loop, comfortable hiking shoes, water, sun protection (hat, sunscreen), and layers of clothing are recommended. Binoculars can enhance wildlife and viewpoint spotting, and a camera is great for capturing the scenic views.

Nearby routes

Easy

4.9

491

Fern Creek and Hillside Loop

01:19h

4.93km

30m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy