Buried Colusa Buttes
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Jacob Lee, a geologist living in Berkeley, visited the Sutter Buttes to look at the various forms of volcanic rock, including andesite and rhyolite.
Monica Vaughan/Colusa County Sun-Herald
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Buried Colusa Buttes.
About 9,430 feet below Colusa County's valley floor lies a hidden range of buttes.
"Drilling in the valley has discovered some 'poor relatives' of the Buttes that never emerged from the thick valley sediments," said Walt Anderson in his 2004 book, "Inland Island: The Sutter Buttes."
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