 This tributary of the river is called the River Cong, flowing through the woods and over an impressive waterfall, where in the past it powered all the machinery within the Congham Oil Mill.The Cong then flows on under the A148 and joins the Babingley close by the Gatton Waters caravan site.After Hillington Park the river flows into the lake that served another long-gone watermill that stood close to Hillington Hall The now increased force of water once powered the large waterwheel at what, years ago was known as West Newton Paper Mill.