rock hole grinder

rock hole grinder,Mississippi Valley Archaeology Center: The Process of Archaeology .a tool with a sharp tip used for making holes. . object placed in a hole in a person's earlobes. .. a large flat rock used as a grinding surface with a mano.rock hole grinder,Ground Stone Artifacts | The Office of the State ArchaeologistA wide range of prehistoric artifacts were formed by pecking, grinding, . began to appear early in the Archaic period, made from hard igneous or metamorphic rocks. . The hole was drilled part way through on one side of the object and the.Indian Grinding Rock State Historic Park - WikipediaIndian Grinding Rock State Historic Park is a California State Park, preserving an outcropping of marbleized line with some 1,185 mortar holes—the.

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rock hole grinder