Mount Diablo, Los Vaqueros & Surrounding Parks

Waterproof/tearproof map of Diablo's protected lands and trails

//Diablo Trail Map
Diablo Trail Map 2017-12-12T13:29:49+00:00

About the Map

What is waterproof, tearproof and has 5,000 more acres of protected lands?

Save Mount Diablo’s latest 2017 edition of the “Mount Diablo, Los Vaqueros & Surrounding Parks, Featuring the Diablo Trail” map.

A highly popular and groundbreaking regional outdoor recreation map, the original edition was the first to show the entire Diablo Region with nearly 40 parks and 520 miles of trails. The map details 338,000 acres of land throughout Central and Eastern Contra Costa County and portions of Alameda County. Of the 338,000 acres shown, over 110,000 are now protected.

The map displays protected lands and trails within the Diablo region, which is roughly bounded north to south from Suisun Bay to Highway 580 through the Altamont Pass, and west to east from Highway 680 to the Byron Highway.  

Featuring The Diablo Trail

As in the original 2007 map, this map presents the 30-mile Diablo Trail, including an elevation profile. Save Mount Diablo wanted to create a map that specifically details the Diablo Trail as it winds through six different open spaces—Shell Ridge Open Space, Diablo Foothills Regional Park, Mt. Diablo State Park, Morgan Territory Regional Preserve, the Los Vaqueros watershed, and Round Valley Regional Preserve.

The map also shows a proposed route for a 60-mile “Diablo Grand Loop.” The inclusion of the trail demonstrates more clearly the connections of parks across Mount Diablo from Walnut Creek to Brentwood and Livermore. The Diablo Grand Loop is now complete although sections of the trail aren’t yet open to the public.

“No other map shows all of the Diablo area parks in a unified design and in regional context. The map illustrates what has been accomplished and what private lands still need to be protected.”

Seth Adams, Land Conservation Director, Save Mount Diablo

Updates to the Diablo Trail Map

2017 – 3rd Edition

Today, Mount Diablo State Park and over 50 other preserves make up a regional open space system of nearly 160 square miles that are traversed by about 700 miles of public trails.

Featuring the Diablo Trail, our third edition regional recreation map covers Mount Diablo and all surrounding parks and preserves. With more than 5,000 acres of newly preserved lands since our last printing in 2012, you can lose yourself in the beauty of the mountain for an hour, a day or a week.

Helping to popularize the Diablo Trail was one of the reasons for the creation of the regional recreation map. We believe the 30-mile multi-use Diablo Trail perfectly showcases not only our stunning landscape but also the regional cooperation that allowed for preserved lands across Mount Diablo from Walnut Creek to Brentwood and Livermore.

The past decade has been important for land conservation in the Mount Diablo area. Major gaps in a broad, sweeping loop of open space have been protected, stretching from Round Valley to Black Diamond Mines and back to Mt. Diablo State Park. It is our hope that one day a 60-70 mile Grand Diablo Loop Trail will be completed. Wouldn’t it be fabulous for the Diablo Trail to pass south through the Altamont Pass and into the rest of the Diablo Range, helping give another reason to protect land along the way?

2012 – 2nd Edition

The 2nd edition, published in 2012, added newly preserved lands including:

• Protected lands in the Tassajara Valley area.
• East Bay Regional Park District and East Contra Costa County Habitat Conservancy lands connecting Mount Diablo to Black Diamond Mines and expanding preserves in the Vasco corridor.
• Contra Costa Water District’s mitigation lands for the Los Vaqueros Reservoir expansion.
• The Concord Naval Weapons Station Reuse Plan’s parks and open space adding over 3,500 acres.
• 18 parcels purchased by Save Mount Diablo, including several along the Marsh Creek corridor, as well as the Thomas Home Ranch property on the southern edge of Pittsburg.

Thanks to our Partners

We thank our partners for helping to create this updated map and for their continued efforts to ensure an abundance of wild open spaces so close to home. We celebrate the preservation of these additional lands acquired through all of our collective efforts: Save Mount Diablo’s donors and volunteers, and our partners.