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The Canton River passes through downtown Canton, Massachusetts, tracing down Washington and Neponset Streets (flowing under the Canton Viaduct), and continues down Walpole Street. It is a tributary of the Neponset River, with a few tributaries on the side. It is also called the East Branch [of the] Neponset River.

Coordinates: 42°09′27″N 71°09′47″W / 42.1576°N 71.1631°W / 42.1576; -71.1631