Raritan Valley is a region located in central New Jersey, primarily encompassing parts of Somerset, Hunterdon, and Middlesex counties. It is named after the Raritan River, which flows through the area. The valley is known for its picturesque landscapes, including rolling hills, farmland, and suburban communities. The region is home to several towns and cities, such as Bridgewater, Somerville, and New Brunswick. Raritan Valley is also recognized for its recreational opportunities, including parks and trails, as well as its historical significance, with various sites dating back to the colonial era.