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Mountain biking trails

Devil's Slide – Ace Trail loop from Pacifica

Routes

Mountain biking trails

Devil's Slide – Ace Trail loop from Pacifica

Hard

3.0

(12)

riders

Devil's Slide – Ace Trail loop from Pacifica

02:34

24.2km

730m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: March 28, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 13.6 km for 219 m

Waypoints

Start point

Bus stop

Get Directions

1.02 km

Old San Pedro Mountain Rd trailhead at Higgins Rd, Pacifica

Highlight • Trail

Gate to prevent cars entering the gravel road that leads to the popular mountain bike alternate route affectionately dubbed Planet of the Apes, leading through McNee Ranch to Montara, avoiding the busy Highway 1

Tip by

2.71 km

Pacifica Vista on Old San Pedro Mountain Road

Highlight • Viewpoint

From this spot on Old San Pedro Mountain Road, you get truly stunning, panoramic views of the Pacific Ocean and surrounding foothills and grasslands. This is a great spot to take in the view and catch your breath before continuing on your ride.

Tip by

5.20 km

Old San Pedro Mountain Road summit

Highlight • Summit

This isn't the sort of road you'd take a vehicle on, nowadays - but it's great for nontechnical mountain biking, and this high point gives you nice views over the surrounding hills.

Tip by

10.8 km

Pacific to SF Bay Panorama

Highlight • Viewpoint

Great panoramic view from Bay to Sea, sadly overlooking San Francisco's biggest prison complex ...

Tip by

11.6 km

Old San Pedro Rd & North Peak Rd junction

Highlight • Trail

At this intersection you either stay in Old San Pedro Road or you take the North Peak Access Road. No matter what road you choose, you will find yourself on fantastic gravel roads that offer amazing views.

Tip by

16.6 km

Tanga Bench

Viewpoint

18.5 km

Southern Devil's Slide Trailhead gate and overlook

Highlight • Trail

At the southern opening of the 2013 Tom Lantos tunnels the old road is now a bike trail.

Tip by

19.5 km

Devil's Slide

Highlight • Cycleway

While the whole section of the bike trail, now closed to car traffic since the 2013 opening of the tunnel, clings precariously to the cliffside, the worst of the actual slide area is apparent also by the 9% steep section of the trail.

Tip by

21.3 km

Ace Trail

Highlight (Segment) • Trail

Best way to bypass the dangerous and shoulderless Cabrillo Highway 1. A better paved trail is planned and might be available by 2024.

Tip by

24.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

14.5 km

3.86 km

3.50 km

1.72 km

515 m

144 m

< 100 m

Surfaces

10.8 km

7.38 km

3.23 km

2.15 km

674 m

Elevation

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

Highest point (300 m)

Lowest point (0 m)

Weather

Today

Sunday 10 May

15°C

9°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

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

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Devil's Slide – Ace Trail loop from Pacifica

Old San Pedro Mountain Rd trailhead at Higgins Rd, Pacifica

Pacifica Vista on Old San Pedro Mountain Road

Old San Pedro Mountain Road summit

Pacific to SF Bay Panorama

Old San Pedro Rd & North Peak Rd junction

Southern Devil's Slide Trailhead gate and overlook

Devil's Slide

Ace Trail

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