New Castle west of the centre, and Yorktown, Somers and North Salem in the western portion. Those fronting on the Hudson, beginning at New York City and traveling westward, are Yonkers, Grcenburgh, Mount Pleasant, Ossiningand Cortlandt. The entire face of the county is well watered by a number of streams and lakes and is remarkable for the picturesqueness of its scenery in almost every part. It may be said to consist, roughly speaking, of several ridges of hills parallel to the Hudson River, and separated by valleys. These hills constitute two general ranges, one extending along the Hudson and the other along the boundary line between the States of New York an<l Connecticut. They are broken up into a number of smaller hills and ridges, whose general course is north and south. The highest are from six hundred to one thousand feet above tide-water. The valleys, also extending north and south, are bordered, as a rule, by cultivated slopes, which add much to the variety and interest of the scenery. The roads running north and south, as they follow the general course of the valleys, are usually level, but those extending from east to west, across the hills and ridges, are very uneven and marked by many deep ascents and de- BCents. In some portions of the county the hills are rocky and precipitous and the scenery bold aud impressive.

The principal streams of the county are Peekskill Creek, Furnace Brook, the Croton, Pocantico and Neperhan Rivers, and Tippett's Brook, tributary to the Hudson and the Bronx Rivers ; Westchester and Hutchinson's Creeks, Mamaroneck aud Byram Rivers, flowing into Long Island Sound ; Maharness and Stamford Mill Rivers, flowing east into Connecticut ; aud Muscoot Creek, Plumb Brook, and Titicus, Cross and Kisco Rivers, tributaries of the Croton. A number of small lakes are located chiefly in the more hilly districts in the north and west.