Geological forces from colliding earth plates pushed up Mount Diablo and its layers of coal. “Here is the burrow of a crab from 50 million years ago where it pushed out sand,” Dedmon said as ...

On a New Year’s Day cold and clear across the Bay Area and Northern California, you could drive to the top of Mount Diablo for a world-class view from the summit viewing deck. Or you could ...

The new recreational map of trails and parks in and around Mount Diablo State Park and the Los Vaqueros Reservoir watershed can be purchased for $9.95 plus tax at Save Mount Diablo, 1901 Olympic ...

Named for the botanist and co-founder of Save Mount Diablo, this easy, flat ¾-mile loop circles the summit, and the first portion, all the way to the Ransome Point Overlook, is ADA accessible.

The Mount Diablo State Park Trail Map ($7.50) is published by the Mount Diablo Interpretive Association (MDIA). It can be purchased at park entrance stations, the Summit Visitor Center, ...

Hiking Mount Diablo offers visitors breathtaking views in spite of its relatively modest height; at its summit, it is 3,849 feet. Mount Diablo sits centered in a valley with its nearby hills at ...