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Old Railroad Grade route map
Difficulty: ExpertOut and Back
California

Old Railroad Grade

Mill Valley, California

13.2 mi

Distance

3,684 ft

Elev. Gain

Out & Back

Route Type

Expert

Difficulty

About This Trail

Old Railroad Grade is an out-and-back trail in Marin County, California. It is 13 miles long and gains 3,684 feet. It is in or next to Mill Valley, 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:92 ft
Max:712 ft
Gain:1,123 ft
Loss:1,123 ft
Elevation profileA line rising and falling between 92 ft and 712 ft across 13.2 mi along the route, drawn from start to end.92 ft299 ft505 ft712 ft0.0 mi3.3 mi6.6 mi9.9 mi13.2 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi92 ft
High point6.6 mi712 ft
End13.2 mi92 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Mill Valley, 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?

Reviews

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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.

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Dawn Falls Trail Loop

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Dawn Falls Trail to Southern Marin Line Road to Piedmont Trail Loop

Dawn Falls Trail to Southern Marin Line Road to Piedmont Trail Loop

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Stay nearby

Campgrounds near this trail

More campgrounds

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