Mount Diablo's distinctive "pillow basalt" erupted from submarine volcanoes hundreds of millions of years ago. Learn how it made its way to the top of a mountain, in the fifth episode of 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.

SAND DOLLAR SECRETS   The Pacific Ocean once lapped against the Sierra Nevada foothills. Here's the story of how the Bay Area eventually became dry land with two bedrocks.  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.

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.

FRANCISCAN ROCKS  The first person to study Mount Diablo geology in depth was a quirky UC Berkeley professor named Andrew Lawson. He found rocks that had emerged from volcanoes in the mid-Pacific. But how did they get on top of a 3,849-foot mountain? Join us on the TRAIL THROUGH TIME, a series of geology videos presented by the Mount Diablo Interpretive Association in partnership with Save Mount Diablo.

TRAIL THROUGH TIME   A 6.3-mile hike from the top to the bottom of Mount Diablo travels through the Bay Area’s entire geologic history. Presented by Mount Diablo Interpretive Association, featuring Ken Lavin. Videography by Macha Rose. Animations by Tanya Atwater, UC Santa Barbara. Music by Phil Heywood. Produced by Joan Hamilton.

Audible Mount Diablo is a joint project of the MOUNT DIABLO INTERPRETIVE ASSOCIATION and SAVE MOUNT DIABLO. 

Spring has come and gone, but the wildflower bloom is not done. Mount Diablo has its own superblooms, and some of them are long lasting. 

A Mount Diablo Interpretive Association film featuring Kendall Paul Oei. Episode 12 in the Wild Mount Diablo series. 

This just in: The ladybugs have returned to Mount Diablo!  Learn all about their meanderings in this Mount Diablo Interpretive Association video featuring naturalist Ken Lavin. Images by Arnold Joe, Scott Hein, and Kendall Oei. Music by Daniel Kaede. Produced by Joan Hamilton. Adapted from "Mitchell Canyon" Audible Mount Diablo, 2017.