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Bridger formation

Sand Wash Basin Tool Stone Sites

Added by yongli on 03/18/2020 - 22:34, last changed on 04/16/2020 - 09:07
Located northwest of Craig in Moffat County , the Sand Wash Basin is an area of Bridger Formation rock outcrops that prehistoric peoples mined extensively as a source for stones to make tools with. Bridger Formation chert is typically light to dark brown, though some of the chert in the basin is...
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