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Big Rock Trail

Lucas Valley

Marin, California

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Big Rock Trail

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  • A representative namesake for Big Rock Trail.- Big Rock Trail
  • A tunnel under the road on the Big Rock Trail.- Big Rock Trail
  • The widing ascent of Big Rock Trail.- Big Rock Trail
  • Big Rock Trail.- Big Rock Trail
  • Western fence lizard (Sceloporus occidentalis) in the bridge.- Big Rock Trail
  • Big Rock Trail.- Big Rock Trail
  • Blue-Eyed Grass (Sisyrinchium bellum).- Big Rock Trail
  • Big Rock Trail.- Big Rock Trail
  • Cattle fence along the Big Rock Trail.- Big Rock Trail
  • California poppies (Eschscholzia californica).- Big Rock Trail
  • The view of Lucas Animation Studios.- Big Rock Trail
  • The view of Lucas Animation Studios.- Big Rock Trail
  • Big Rock Trail.- Big Rock Trail
  • Views near the top of the Big Rock Trail.- Big Rock Trail
  • The meandering thread of Big Rock Trail.- Big Rock Trail
  • The end of the road to the left. You can follow this fireroad a bit farther, but it eventually becomes blocked off.- Big Rock Trail
Overview + Weather
Pros: 
Beautiful views. Wildflowers. Good workout.
Cons: 
There-and-back only.
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Region:
Marin, CA
Congestion: 
Moderate
Pets allowed: 
Yes
Net Elevation Gain: 
915.00 ft (278.89 m)
Parking Pass: 
Not Required
Preferable Season(s):
Winter, Spring, Summer, Fall
Total Distance: 
5.75 mi (9.25 km)
Trail type: 
There-and-back
Trailhead Elevation: 
623.00 ft (189.89 m)
Current Local Weather:
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Hike Description

Hike Description

Contributor

The Big Rock Trail is a mild climb toward the second highest point in Marin County, a hill that tops out at 1,895 feet. Opened in 2003 as part of a donation by George Lucas, this path is now part of the Bay Area Ridge Trail. There are many routes to the peak, including the much more difficult Novato Hill Climb, which begins on the opposite side.

Finding the Big Rock trailhead is a straightforward endeavor. Simply watch for the massive boulder on the side of the road. The trail is well marked and maintained all the way to the top. Along the way you will see large fields of California poppies and scenic vistas. About half way to the top, you can look back down to see part of the Lucas Valley Ranch expansion.

Once you reach the fire road on the ridge, you can follow the path right for a continued ascent up to the radio towers on the peak. The road continues to the left as well; however, it is quickly blocked by private land. There is no easy loop back to the parking area, but if you can get a ride, there are many routes back down from the peak that lead to different areas of San Rafael and Novato.

Note that parking at the trailhead is limited during peak times.

Updates, Tips + Comments

Updates, Tips + Comments

Field Guide + Trail Map

Field Guide + Trail Map

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Location + Directions

Location + Directions

Nearby Camping + Lodging

(8 within a 30 mile radius)

Nearby Adventures

(91 within a 30 mile radius)

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