Cobb’s Mill Lake is a privately owned, man-made reservoir located in Alloway Township, NJ at N39.52873° W75.32130° (NAD83). Its altitude is 59 feet and the pond is fed with water from a natural spring. It is one of the few ponds in all of New Jersey that is its own supply source and doesn’t have any other pond or body of water emptying into it. A New Jersey State analysis concluded that Cobb’s Mill Lake was the coldest of any pond water in all of South Jersey! Not only does this reservoir have unique natural features but also has a very rich history! - See more at: http://newsofsalemcounty.com/the-lakes-of-salem-county-cobbs-mill/#sthash.9ReiZYsF.ugcc2IDK.dpuf