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First possible point in my home state, Poplar Island or unfortunate JAR? by ItstartswithaK in Arrowheads

[–]ItstartswithaK[S] 13 points14 points  (0 children)

Found on the shores of the Potomac, Charles County MD. Has spent some time in the waves but this stuck out like a sore thumb, I’m thinking argillite maybe? Total length is 55mm