Iron Horse Trail junction – Mount Diablo Summit loop from Pleasant Hill/Contra Costa Centre

Iron Horse Trail junction – Mount Diablo Summit loop from Pleasant Hill/Contra Costa Centre

Hard

4.9

(6194)

17,972

riders

Iron Horse Trail junction – Mount Diablo Summit loop from Pleasant Hill/Contra Costa Centre

03:09

51.7km

1,140m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 4, 2026

Tips

Includes a segment in which cycling is not permitted

After 26.3 km for 134 m

Waypoints

Start point

Train Station

Get Directions

77 m

Pleasant Hill/Contra Costa Center BART Station

Highlight • Rest Area

The Pleasant Hill/Contra Costa Center BART Station features the first bike station in Contra Costa County, equipped with 215 bike racks, a retail shop for bicycle accessories, and maintenance services. It is a go-to spot for exploring the area by bike without the hassle of vehicle parking in the city.

Tip by

600 m

Iron Horse Trail Bridge at Treat Boulevard

Highlight • Bridge

Exceptionally well-built bike infrastructure, with a wide, gradually rising bridge that allows an almost effortless crossing above the busy intersection.

Tip by

1.02 km

Iron Horse Trail junction

Highlight • Cycleway

Crossing of two of the best East Bay flat bike trails, one following a former rail line, the other an old canal that still transports municipal water.

Tip by

2.13 km

Heather Farm & Lake

Highlight • Lake

A natural lake, mostly used for fishing, that has the paved Ygnacio Canal Trail on the west side and some unpaved trails along the east.

Tip by

19.6 km

Livermore Valley Overlook

Highlight • Viewpoint

Pause a moment to enjoy the magnificent views over the Livermore Valley. There are picnic benches down the stairs should you want to rest up for a little longer on your way to the summit.

Tip by

22.8 km

Juniper Campground

Highlight • Rest Area

This popular campground is open year-round and sits on the plateau's edge. Sites on the south side are the most favorable, with dramatic views of the San Ramon Valley. It is a great spot to satellite out to some great hiking trails in the area.

Tip by

26.3 km

Mount Diablo Summit

Highlight • Summit

Located in Mount Diablo State Park, with an elevation of 3,849 feet Mount Diablo is the highest peak in San Francisco's East Bay area. On a clear day you can look east to see over the city of San Francisco and on the Pacific Ocean. parks.ca.gov/?page_id=517

Check out my Juniper Trail tour for more pictures of the area: komoot.de/tour/4081148

Tip by

49.2 km

Bancroft Botanical Gardens

Highlight • Natural

Lush world-renowned 3.5 acre botanical garden and retail nursery housing a collection of climate-appropriate plants from around the world. Offers a variety of classes, workshops, and events. Mediterranean plant focus.
Entrance fee $12. Open Tuesday – Sunday 9AM – 4PM. Check hours at ruthbancroftgarden.org

Tip by

51.7 km

End point

Train Station

Way Types & Surfaces

Way Types