One cannot travel far in Orange County in most directions without coming upon a lake or a pond, and there are dozens of them in the southeastern section. These feed its many streams, and when Eager wrote his history he said there was not one town in the county that had not water power to some extent. Beginning in the northern part of the Highlands in Cornwall the lake-and-pond system extends through the towns of Highland and Monroe to Greenwood Lake, thence west and north to Big Meadow Pond in the Highlands. Greenwood Lake, in Warwick, is the largest body of water in the county. It is about nine miles long and one wide, is partly in New Jersey, and is a feeder for the Morris Canal. Sutherland's Pond, half a mile long, southeast from Cro'-nest Mountain, has an outlet which runs into Murderer's Creek. Big Meadow Pond, in Highlands, covers about 300 acres, and its outlet pours over the rocks of Buttermilk Falls. The waters of Round Pond flow into Long Pond under a natural bridge about 80 feet wide, but the stream is lost sight of until it emerges on the other side. This is similar to the outlet of Washington Lake in New Windsor, which emerges at Trout-hole and there becomes a fall of forty feet. Sterling Lake, at the beginning of the Warwick series, covers about sixty acres, and in 1751 iron works were established at its outlet. Round Pond, in Wawayanda, is in shape what its name implies, has no visible outlet, its water is clear, pure and deep, and it is about a mile in circumference. Thompson's Pond, in the northwestern part of Warwick, covers about 100 acres, feeds Quaker's Creek, and this outlet furnishes power for mills. Orange Lake, in Newburgh, covers about 100 acres. But all the lakes and ponds of Orange are too many to be named. They are almost as interesting a feature of the county as its streams.