This stone resembles a native American tool used for cracking nuts or grinding food, specifically known as a grinding stone or cupstone. [1, 2]The deep circular depressions are often found on sandstone, used to hold nuts in place or to grind materials like hematite. [1]Similar artifacts have been found along creek banks and in fields in the southeastern United States. [1]While some similar holes are formed naturally by water weathering harder rocks out of a softer matrix, artifacts typically show worked indentations measures 3.5 in x 20 in x 9 in

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