Apr 8, 2022
MERCURY MINING A mine near Clayton opened in 1875 and was long gone a century later. But it and subsequent mines nearby are still causing problems.
Mar 25, 2022
CANYON CLOWN Continuing our tour of the east side of Mount Diablo State Park, we hear tales of William Ryder "Doc" Powell, a circus clown/mercury miner who hoped to hit it rich in these hills.
From a tour of Perkins Canyon presented by Save Mount Diablo. Featuring Seth Adams, Jean Hetherington, and Ken Lavin. Music...
Mar 11, 2022
READING THE ROCKS Crossing Perkins Creek, we see a colorful combination of rocks—green serpentine, red chert, and gray dacite—that offer clues to the mountain's tumultuous past.
From a tour of Perkins Canyon presented by Save Mount Diablo. Featuring Seth Adams, Jean Hetherington, and Ken Lavin. Music by Phil...
Mar 4, 2022
Mount Diablo is not a volcano, but has volcanic "domes." Geologist Jean Hetherington helps us see those mushroom-shaped hills as clues to our landscape's dynamic history.
From a tour of Perkins Canyon presented by Save Mount Diablo. Featuring Seth Adams, Jean Hetherington, and Ken Lavin. Music by Phil Heywood....
Feb 25, 2022
NORTH PEAK Learn about the lofty backdrop to this quiet entrance to Mount Diablo State Park: 3,557-foot North Peak. You can scramble up the peak from here—with difficulty!—or just gaze in admiration.
Presented by Save Mount Diablo. Featuring Seth Adams, Jean Hetherington, and Ken Lavin. Music by Phil Heywood....