These depressions have in several places created small lakes, of which Croton Lake is entirely artificial. Byram Lake, in Bedford and North Castle, Rye Pond in Harrison (covers two hundred and ten acres), Cross Lake and North and Solith Ponds, in Poundridge, Waccabuck Lake (covei-s two hutidred and twelve acres), in Lewisboro', Peach Lake, in North Salem, Mohegau and Mohansic Lakes, in Yorktown, and smaller bodies of fresh water in other localities indicate a formation of surface rolling and broken in character, and picturesque and beautiful in landscape. The largest body of water in the county is Croton Lake, artificially formed by the Croton Dam,

HISTORY OF WESTCHESTER COUNTY.

five miles from the mouth of the Croton River, for supplying the city of New York with water.

The Croton River, rising in Dutchess County, flows through Putnam County, and entering Westchester directly and through its tributaries drains Somers and part of Yorktown by the Muscoot branch, North Salem, by the Titicus River, Lewisboro', Poundridge and a part of Bedford by the Cross River, and portions of Bedford and New Castle by the Kisco River, and flowing southwesterly, enters the Hudson River at Tappan Bay. The Peekskill Creek, in the northwest corner of the county, flows among the many hills that stud that section and finds its outlet in the Hudson near Peekskill. Furnace Brook, in Cortlandt, is another small tributary of the Hudson. Pocantico River, rising in New Castle, forms the dividing line between Ossining and Mount Pleasant, and through Sleepy Hollow, finds its outlet in the Hudson at Tarrytown. Neperhan, or Saw-Mill River, rises in New Castle, and flowing through Mount Pleasant, Greenburgh and Yonkers, discharges its waters into the Hudson at the city of Yonkers. Tibbitts' Brook, a small stream in Yonkers, empties into the Spuyten Duyvil Creek.