The portion of the Bronx watershed drained for this purpose has an area of thirteen and one-third square miles. East of the mouth of the Bronx River on the Sound are the outlets of AYestchester and Eastchester Creeks -- tidal streams -- emptying, respectively, into AVestchester and Eastchester Bays. The Hutchinson River rises in Scarsdale and flows into Eastchester Bay. The Mamaroneck River has its source near White Plains and Harrison, findingits outlet in Mamaroneck Harbor. The Byram River, which enters the Sound above Portchester, and at its mouth separates our county from Connecticut, drains parts of North Castle and Rye. Blind Brook empties at Milton, after draining portions of Harrison and Rye. Most of the streams flowing into the Sound afford, by the reflux of the tide, an intermitting hydraulic power. The Mianus River, rising in North Castle, and Stamford Mill River, rising in Poundridge, find their way to the Sound through Connecticut. Some minor streams in the northern section of the county flow into Putnam Count v.

IIISTOItY

WKST< 'HESTER

COUNTY

The lakes of Westchester, like the hills and streams, boast no features of exceptional interest, but are strictly in keeping with the quiet beauty of the general landscape. The largest, as already mentioned, isCroton Lake, entirely artificial; and we have also seen that

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several of the natural lakes have been utilized for purposes of water supply. Lake Waccabuc, in the Town of Lewisboro, has, since 1870, been connected with the Croton system. It covers over two hundred acres, and is very deep and pure. In the Town of Poundridge several