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United States
California
Contra Costa County

Round Top Loop Trail – Volcanic Trail loop from Sibley Volcanic Regional Preserve

Routes
Running trails & routes
United States
California
Contra Costa County

Round Top Loop Trail – Volcanic Trail loop from Sibley Volcanic Regional Preserve

Moderate

3.2

(24)

90

runners

Round Top Loop Trail – Volcanic Trail loop from Sibley Volcanic Regional Preserve

01:07

8.71km

240m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 4, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Sibley Volcanic Regional Preserve

Waypoints

A

Start point

Parking

Get Directions
1

2.35 km

Volcano Quarry View

Highlight • Viewpoint

2

2.58 km

A free standing wooden bench marks a spectacular overlook with views to the Labyrinth to the North, and the Orinda-Lafayette area to the East. A partial view cuts across Skyline Northwest to the SF Bay.

Tip by

3

3.63 km

Round Top Loop Trail

Highlight (Segment) • Trail

This beautiful, wide forest trail skirts around the northwest flank of Round Top. While the entire loop around the mountain is open for hiking, this section is the only part allowed for cycling.

Tip by

4

6.17 km

Views over the old quarry

Highlight • Viewpoint

Sunset is special here

Tip by

5

6.65 km

Volcanic Trail

Highlight (Segment) • Trail

This trail leads up to 1,634-foot Volcanic Peak. You can also bike to the summit of nearby Round Top, but the access road there is paved, so it's not as suited to a mountain bike.

Tip by

B

8.71 km

End point

Parking

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Way Types & Surfaces

Way Types

4.85 km

3.68 km

165 m

Surfaces

4.28 km

3.21 km

1.20 km

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Today

Tuesday 13 October

23°C

9°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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