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Big Rock Trail

Intermediate/Difficult

Trail

3.4 mile 5.5 kilometer point to point
88% Runnable
Intermediate/Difficult

Elevation

Ascent: 1,212' 369 m
Descent: -30' -9 m
High: 1,817' 554 m
Low: 635' 194 m

Grade

Avg Grade: 7% (4°)
Max Grade: 17% (10°)

Dogs

Off-leash
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Trail shared by Bill Donahoe

A steady climb for Bay Area views from the Wine Country to the Golden Gate.

Bill Donahoe

Features Birding · Views · Wildflowers

Need to Know

Limited parking at the crest of Lucas Valley Road. Parking can be congested by late morning on weekends. Seldom crowded during the week.

Description

The first half mile of the trail is in full sun before you hit the woods for the next 0.7 miles on a steady, not unpleasant climb. After the first 2.5 miles, the trail steepens and widens. At 3.1 miles, stay to the right and take Buck's Bypass to join the Big Rock Ridge Fire Road or call it a day, take a look around you at the beautiful views in all directions and head back to your car.

Flora & Fauna

Wildflowers in the spring. Red shouldered and red tailed hawks and American Kestrel along with more common turkey buzzards.

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Contacts

Land Manager: Marin County Parks

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Trail Ratings

  5.0 from 1 vote

#2

in Marin County

#2089

Overall
  5.0 from 1 vote
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Trail Rankings

#2

in Marin County

#255

in California

#2,089

Overall
21 Views Last Month
87 Since Apr 4, 2019
Intermediate/Difficult

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Photos

Looking South — San Francisco in the Distance
Mar 31, 2019 near Lucas V…, CA
Big Rock
Mar 31, 2019 near Lucas V…, CA
Cattle Gate (summit in the distance)
Mar 31, 2019 near Lucas V…, CA
Heading East
Mar 31, 2019 near Lucas V…, CA
Buck's Bypass (stay right)
Mar 31, 2019 near Lucas V…, CA
Miller Creek - Second Bridge
Mar 31, 2019 near Lucas V…, CA

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