Wachusett Department, Wachusett Watershed, Gates Brook Improvement, preliminary ditch at Bowles Avenue, looking east, showing connection with small arm of brook, West Boylston, Mass., Dec. 1915

Wachusett Department, Wachusett Watershed, Gates Brook Improvement, preliminary ditch at Bowles Avenue, looking east, showing connection with small arm of brook, West Boylston, Mass., Dec. 1915

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