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Mountain biking trails

Big Rock Ridge – 680 Trail loop from Novato Hamilton

Routes

Mountain biking trails

Big Rock Ridge – 680 Trail loop from Novato Hamilton

Hard

4.6

(6638)

10,623

riders

Big Rock Ridge – 680 Trail loop from Novato Hamilton

04:46

43.3km

1,450m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: March 1, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Loma Alta Open Space Preserve

Waypoints

Start point

Train Station

Get Directions

8.53 km

Point Ridge Trail Junction Viewpoint

Highlight • Viewpoint

At the junction of Chicken Shack Fire Road and Ponti Ridge Trail. There are benches, a great view, and trail markers.

Tip by

9.31 km

Big Rock Ridge

Highlight (Segment) • Summit

With 360 degree panoramas at multiple points, perfectly groomed trails, and undulations to keep things interesting (and challenging) this is a great ridge to enjoy for multiple abilities.

Tip by

13.4 km

Big Rock Ridge

Highlight • Summit

Highest point on Big Rock Ridge Fire Road with panoramic views of the Bay, Marin county, and even across the East bay to Mt. Diablo and south to San Francisco. …

Tip by

16.7 km

Big Rock Trail to ridge summit above Lucas Films Studio

Highlight • Summit

Big Rock Trail cuts through Lucas Valley Open Space to reach the 2nd highest point in Marin County. From later winter through early summer the hills are verdant green and …

Tip by

19.2 km

The Big Rock - Skywalker Ranch

Highlight • Natural Monument

As the name implies, a big bolder marks the crest of Lucas Valley Road above Skywalker Ranch, the elusive retreat and production studios of George Lucas and his various film projects.

Tip by

19.3 km

Bay Area Ridge Trailhead

Highlight • Trail

There is plenty of street parking at this trailhead, with the amazing Big Rock nearby to make it easy to spot. The Bay Area Ridge Trail runs along the ridgelines …

Tip by

22.5 km

Loma Alta Summit

Highlight • Summit

Loma Alta literally translates to "high hill" and is the highest point in the Loma Alta Open Space Preserve. A few different dirt roads and trails lead to the bald summit that looks over the surrounding hillsides.

Tip by

27.0 km

680 Trail

Highlight (Segment) • Trail

The 680 Trail in Marin County has access points at the end of Manuel T. Freitas Parkway via the Mission Pass Bike Path and Fawn Drive. The terrain is fun, rolling trails.

Tip by

43.3 km

End point

Train Station

Way Types & Surfaces

Way Types

22.0 km

13.1 km

7.00 km

959 m

336 m

< 100 m

Surfaces

27.3 km

6.99 km

6.79 km

2.11 km

176 m

Elevation

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

Highest point (560 m)

Lowest point (10 m)

Weather

Today

Tuesday 19 May

32°C

12°C

0 %

Additional weather tips

Max wind speed: 22.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Big Rock Ridge – 680 Trail loop from Novato Hamilton

Point Ridge Trail Junction Viewpoint

Big Rock Ridge

Big Rock Ridge

Big Rock Trail to ridge summit above Lucas Films Studio

The Big Rock - Skywalker Ranch

Bay Area Ridge Trailhead

Loma Alta Summit

680 Trail

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