Wachusett Aqueduct, Lower Dam, Open Channel, Section 11, from the southeast, near south end of bridge, Sawin's Mills road; former site of Sawin's Dam and mill pond, Southborough, Mass., Mar. 16, 1898

Wachusett Aqueduct, Lower Dam, Open Channel, Section 11, from the southeast, near south end of bridge, Sawin's Mills road; former site of Sawin's Dam and mill pond, Southborough, Mass., Mar. 16, 1898

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