CLASHING PLATES   The story of the Bay Area landscape begins 190 million years ago, 3,000 miles out in the Pacific Ocean under 10,000 feet of water. Join us on the TRAIL THROUGH TIME, 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.