Though it has a much deeper history than the borax in the ground, as Native American artifacts like obsidian spear heads found at this site date back 12,000 years. Cook said, “I have found some ...

The Clovis were a prehistoric people who flourished in North America at the end of the Ice Age, hunting mammoths and other big game with spear points ... this obsidian piece is the largest ...

of this obsidian point revealed a residue of fossil pine pitch. Experts believe the first step the Clovis took in attaching their points to spears or knife handles was to smear tree resin on each ...