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The Split Rock Archaeological Site is a buried multiple component aboriginal campsite located in the Holocene terraces south of the Sweetwater River. The major component at this site, in terms of both quantity of recovered materials and importance to developing archaeological theories, represented the Early Plains Archaic Period. Prominent to the significance of this site was the 1984 investigation of five housepit features and two additional activity or occupation features associated with the Early Plains Archaic component.

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