If you are safe from the fires and curious to learn about another force that has shaped the Bay Area landscape, take a virtual walk on the TRAIL THROUGH TIME. It's a series of geology videos featuring naturalist Ken Lavin. Sponsored by the Mount Diablo Interpretive Association in partnership with Save Mount Diablo. Videography by Macha Rose. Animations by Tanya Atwater, UC Santa Barbara. Music by Phil Heywood. Produced by Joan Hamilton.