Much of Swansea is hilly with the main area of upland being located in the council ward of Mawr. Areas up to range across the central section: Kilvey Hill, Townhill and Llwynmawr separate the centre of Swansea from its northern suburbs. Cefn Bryn, a ridge of high land, is the backbone of the Gower Peninsula. Rhossili Down, Hardings Down and Llanmadoc Hill are up to high. The highest point is located Penlle'r Castell at on the northern border with Carmarthenshire.