Audible Mount Diablo

Audible Mount Diablo is an invitation to adventure. Its free multimedia tours combine lively interviews and music with the rush of wind and the chirps, howls, and growls of wildlife. Naturalists heighten visitors’ appreciation of the sights and sounds at each stop, tell tales of the mountain’s past, and suggest what to look for around the next bend. Photographs pop up to help identify plants and animals. Perfect to prepare for your first--or your hundredth--trip up the mountain.

Sponsored by Save Mount Diablo and the Mount Diablo Interpretive Association. Produced by Audio Guides to the Outdoors

Photo above by Scott Hein

Farewell to Frank Valle-Riestra

May 14, 2021

We're re-publishing this episode of our "Plants of Twin Peaks" series in honor of Frank Valle-Riestra, who passed away in April at age 95. Frank loved Mount Diablo State Park and helped found the Mount Diablo Interpretive Association. In this 2013 recording, he discusses Eagle Peak, Aeolian harps, and the charm...

Plants of Twin Peaks: Episode 22

Oct 24, 2019

The last stop in our Twin Peaks loop takes us across a lush meadow to Coulter Pond.

Plants of Twin Peaks: Episode 20

Oct 10, 2019

Reap the rewards of climbing this lesser-known peak in Mount Diablo State Park.

Stop 5 of a hiking guide to Twin Peaks, presented by Mount Diablo Interpretive Association in partnership with Save Mount Diablo.

Plants of Twin Peaks: Episode 19

Sep 26, 2019

MOUNT DIABLO HIKERS: Where did names like Mount Olympia, Donner Canyon, Back Canyon, and Ransom Point come from? And what's with the roasted rock on top of Lower Twin Peak? All-knowing and clever Ken Lavin explains.

Plants of Twin Peaks: Episode 18

Sep 19, 2019

QUIZ TIME: Climbing up the north slopes of Mount Diablo, you can see a place famous for its grizzly bears that was once called The Deadfall. What's the name of the town today?