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Terra Linda to Big Rock via 680 Trail and Loma Alta Mountain route map
Difficulty: ExpertOut and Back
California

Terra Linda to Big Rock via 680 Trail and Loma Alta Mountain

San Rafael, California

12.6 mi

Distance

3,389 ft

Elev. Gain

5h 27m

Est. Time

Out & Back

Route Type

Expert

Difficulty

About This Trail

Terra Linda to Big Rock via 680 Trail and Loma Alta Mountain is an out-and-back trail in Marin County, California. It is 13 miles long and gains 3,389 feet. It is in or next to Sleepy Hollow, California.

From the trail data on this page.

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:79 ft
Max:477 ft
Gain:1,033 ft
Loss:1,033 ft
Elevation profileA line rising and falling between 79 ft and 477 ft across 12.6 mi along the route, drawn from start to end.79 ft212 ft344 ft477 ft0.0 mi3.2 mi6.3 mi9.5 mi12.6 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi79 ft
High point4.3 mi477 ft
End12.6 mi79 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Sleepy Hollow, CA · in or next to town
County:
Marin County, CA

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Nearby Trails

More trails near Terra Linda to Big Rock via 680 Trail and Loma Alta Mountain
Terra Linda - Sleepy Hollow Ridge Trails

Terra Linda - Sleepy Hollow Ridge Trails

6.0 mi
TrailDifficulty: Difficult
Terra Linda Fire Road, 680 Trail and Solstice Loop

Terra Linda Fire Road, 680 Trail and Solstice Loop

9.5 mi
TrailDifficulty: Difficult
Terra Linda Divide Trail

Terra Linda Divide Trail

4.0 mi
TrailDifficulty: Moderate
Oak Manor, Smith Ridge, Sunrise and Old Railroad Grade Loop

Oak Manor, Smith Ridge, Sunrise and Old Railroad Grade Loop

5.1 mi
TrailDifficulty: Difficult
Memorial Ridge, Cemetary, Ridgewood and Tomahawk Trail

Memorial Ridge, Cemetary, Ridgewood and Tomahawk Trail

3.3 mi
TrailDifficulty: Moderate
Sleep Hallow Loop

Sleep Hallow Loop

5.9 mi
TrailDifficulty: Difficult

Stay nearby

Campgrounds near this trail

More campgrounds

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