TREES AS LIVING HISTORY Mount Diablo's oaks, pines, bays, and buckeyes have tales to tell—if you know what to look for.

Presented by Save Mount Diablo, in partnership with Mount Diablo Interpretive Association.

Featuring Heath Bartosh, Seth Adams, Robert Doyle, Lindsey Hendricks, Brian Peterson, Cyndy Shafer.

Photographs: Scott Hein, Stephen Joseph, Troy Montemayor

and Seth Adams, Heath Bartosh, Steve Edwards, Brad Heckman, Helovi/istock, Joan Hamilton, Shawn Hanrahan/Texas A&M, Jepson Herbarium, Al Johnson, Neal Kramer/Strybing Arboretum, SWKrullImaging/iStock, Kit Leong/iStock, Marshman, Carl Osborn, Bill Sattler, San Ramon Valley Fire Protection District, Arturo Reina Sanchez, Spyglass Hill, Terry Tomkins/USDA, Charles Webber/Cal Academy of Sciences, Westphalia/iStock

Music: Phil Heywood, Steve Arnold, Podington Bear

Illustration: Laura Cunningham

Production, Narration: Joan Hamilton

Special thanks to Bay Nature magazine