Ground Stone Artifacts | The Office of the State Archaeologist
Cobbles with small shallow cupped ... and large flat blocks of quartzite or granite were pecked and ground into dishshaped grinding stones called metates to grind corn or other seeds into meal. Catlinite elbow and discbowl pipes Some ground stone tools were created incidentally by abrasion with other tools. Manos, for example, are handheld stones used in conjunction with .