Save Mount Diablo will expand its free Discover Diablo ... and other outdoor activities like mountain biking, rock climbing, meditation in nature, plein air painting events, bird watching, and ...

That land will now be permanently preserved and managed as part of a new state program focused on the San Andreas fault’s ...

A grant helped pay for the 98-acre property in Contra Costa County that is said to contain rare volcanic habitat.

decided on a whim to head to Mount Diablo State Park. It was somewhere we’d never ventured, and the pictures I’d seen — people tucked into its crevices, kids climbing knobby inclines and ...