Every day, hundreds of stone artifact enthusiasts around the world sit down and begin striking a stone with special tools attempting to craft the perfect arrowhead or knife. This craft is known as ...

Stone arrowheads, produced through a process known as knapping, are a major focus of events like the Bald Eagle Knap-In Primitive Arts Festival held annually by the Susquehanna Valley Flint Knappers ...

It doesn't matter where Bo Earls is. He could be on his honeymoon, at the park with his two children or sitting in his man cave of a garage. He finds his therapy in the intricate process of flint ...

On the morning of July 9, 2011, we were climbing a remote hill near the western shore of Lake Turkana in northern Kenya. Since then, conventional wisdom in human evolutionary studies has supposed that ...

Eight people sit in a circle, mostly mute, intently cutting or chopping chunks of obsidian on their laps with tools—which, like the obsidian, are stone. Occasional banter and a chorus of ...

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Rex Watson displays two bi-face knives that he made from Oregon and California obsidian. The handles are from mule deer and elk antlers. (The Observer/PHIL BULLOCK). STORY BY DICK MASON OF THE ...