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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 Heywood. Photographs by Scott Hein and others. Production by Joan Hamilton.
By Joan Hamilton: writer, producer5
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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 Heywood. Photographs by Scott Hein and others. Production by Joan Hamilton.