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Mountain Peaks

Mount Diablo Summit

Mountain Peaks

Mount Diablo Summit

Highlight • Summit

Mount Diablo Summit

Name: Mount Diablo Summit
Rating: 2

Recommended by 18 road cyclists

This Highlight is in a protected area

Please check local regulations for:

Mount Diablo State Park

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Location: Contra Costa County, California, United States

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Best Road Cycling Rides to Mount Diablo Summit

5.0

(8)

283

riders

1. Mount Diablo via Summit Road — Walnut Creek

48.5km

02:57

1,140m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

5.0

(2)

529

riders

2. Mount Diablo Summit – Black Hills Reservoir loop from Alamo

57.8km

03:19

1,180m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

5.0

(1)

421

riders

3. Mount Diablo Summit – Black Hills Reservoir loop from Diablo

40.2km

02:33

1,050m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Tips

maniboyflex

June 18, 2025

Mount Diablo, is the Bay Area second-highest peak at 1173m (3849ft). The challenging climb features constantly fluctuating gradients averaging 8%, with tough sections up to 18% and a brutal 23% finish in the last 200m. The equally demanding descent requires good bike handling due to tight corners, potholes, and strong winds. The road to the top is open daily from 8 AM till sunset.

Bergziege

February 4, 2020

Mount Diablo is the second highest peak of the Bay Area (1173m / 3849ft). It offers a great view of the bay area and the San Joaquin Valley. San Francisco and even the Sierra Neavada are visible.
The climb with its countless corners offers a magnificent adventure. Magnificent but also hard, since the gradient is fluctuating permanently. It averages 8% with longer sections of 15%-18%. The steepest part are the last 200m with up to 23%. Just when you think that you have conquered the climb, it's hardest part punches in.
The descent is also challenging. Many tight corners, some potholes and harsh wind demand good bike handling.
The road to the top is open from 8am till sunset.

Ghentman

March 2, 2024

Nice views and toilets after reaching the summit.

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Details

Informations

Elevation 1,170 m

Weather

Today

Saturday 13 December

18°C

6°C

0 %

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Max wind speed: 5.0 km/h

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See rides here

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Location: Contra Costa County, California, United States

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Mount Diablo Summit

1. Mount Diablo via Summit Road — Walnut Creek

2. Mount Diablo Summit – Black Hills Reservoir loop from Alamo

3. Mount Diablo Summit – Black Hills Reservoir loop from Diablo

Other Popular Places to Check Out

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