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Carquinez Loop Overlook Trail and Bull Valley Trail route map
Difficulty: ModerateLoop

Carquinez Loop Overlook Trail and Bull Valley Trail

Port Costa, California

2.8 mi

Distance

636 ft

Elev. Gain

1h 11m

Est. Time

Loop

Route Type

Moderate

Difficulty

About This Trail

Carquinez Loop Overlook Trail and Bull Valley Trail is a loop trail in Contra Costa County, California. It is 2.8 miles long and gains 636 feet. It is in or next to Port Costa, 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.

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Elevation Profile

Min:11 ft
Max:97 ft
Gain:194 ft
Loss:194 ft
Elevation profileA line rising and falling between 11 ft and 97 ft across 2.8 mi along the route, drawn from start to end.11 ft40 ft68 ft97 ft0.0 mi0.7 mi1.4 mi2.1 mi2.8 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi32 ft
High point2.0 mi97 ft
End2.8 mi32 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Port Costa, CA · in or next to town
County:
Contra Costa 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.

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