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Nortonville and Black Diamond Loop route map
Difficulty: DifficultLoop
California

Nortonville and Black Diamond Loop

Antioch, California

5.7 mi

Distance

1,693 ft

Elev. Gain

2h 35m

Est. Time

Loop

Route Type

Difficult

Difficulty

About This Trail

Nortonville and Black Diamond Loop is a loop trail in Contra Costa County, California. It is 5.7 miles long and gains 1,693 feet. The nearest town is Antioch, California, about 1 mile away in a straight line.

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:219 ft
Max:494 ft
Gain:516 ft
Loss:516 ft
Elevation profileA line rising and falling between 219 ft and 494 ft across 5.7 mi along the route, drawn from start to end.219 ft311 ft402 ft494 ft0.0 mi1.4 mi2.9 mi4.3 mi5.7 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi219 ft
High point2.8 mi494 ft
End5.7 mi219 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Antioch, 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.

Nearby Trails

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2.6 mi
TrailDifficulty: Easy

Lougher Loop Trail

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Lougher Ridge Trail

0.9 mi
TrailDifficulty: Easy
River View Trail and Railroad Bed Trail Loop

River View Trail and Railroad Bed Trail Loop

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TrailDifficulty: Moderate
Sydney Flat to Box Canyon

Sydney Flat to Box Canyon

10.0 mi
TrailDifficulty: Difficult
River View & Saddle Trail Loop

River View & Saddle Trail Loop

3.5 mi
TrailDifficulty: Moderate

Stay nearby

Campgrounds near this trail

More campgrounds

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