More than a century ago, miners gnawed away at a northern shoulder of the East Bay's iconic mountain. Today, thanks to conservation efforts, it's an inviting open space with rare plants and big vistas.

Featuring Seth Adams. Presented by SAVE MOUNT DIABLO in partnership with the Mount Diablo Interpretive Association as part of the Audible Mount Diablo series. Photos courtesy of Contra Costa Historical Sociey. Production by Joan Hamilton.