A grove of Bristlecones has kept a silent vigil atop Nevada’s desolate Wheeler Peak for millennia. “The idea of a single individual surviving for 5,000 years rooted in place is truly remarkable and I think strikes awe in most of us,” said UA dendrochronologist Chris Baisan, who first established the age of Prometheus, the oldest known tree. (Image by: Rex Adams/LTRR)
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