My son, Ben, knows where to look to find arrowheads and other tools, wandering around creekbeds in the West County. These obsidian tools were made most likely by coastal Pomo Indians who would have acquired the obsidian by trading shells with inland tribes.
Dale Dougherty 
wow thos r amazing blades iv seen iv found hundreds of arrowheads in nevada but nothing that big grate finds
wow thos r amazing blades iv seen iv found hundreds of arrowheads in nevada but nothing that big grate finds