open moorland, reaching the foothills of the Black Mountain range. To the east is the coastal strip around Swansea Bay. Cutting through the middle from the southeast to the northwest is the urban and suburban zone stretching from the Swansea city centre to the towns of Gorseinon and Pontarddulais. The most populated areas of Swansea are Morriston, Sketty and the city centre. The chief urbanised area radiates from the city centre towards the north, south and west; along the coast of Swansea Bay to Mumbles; up the Swansea Valley past Landore and Morriston to Clydach; over Townhill and Mayhill to Cwmbwrla, Penlan, Treboeth and Fforestfach; through Uplands, Sketty, Killay to Dunvant; and east of the river from St. Thomas to Bonymaen, Llansamlet and Birchgrove. A second urbanised area is focused on a triangle defined by Gowerton, Gorseinon and Loughor along with the satellite communities of Penllergaer and Pontarddulais. About three-quarters of Swansea is on the coast—the Loughor Estuary, Swansea Bay and the Bristol Channel. The geology of the Gower Peninsula ranges from Carboniferous Limestone cliffs along its southern edge from Mumbles to Worm's Head and the salt-marshes and dune systems of the Loughor estuary to the north. The eastern, southern and western coasts of the peninsula are lined with numerous sandy beaches both wide and small, separated by steep cliffs. The South Wales Coalfield reaches the coast in the Swansea area. This had a great bearing on the development of the city of Swansea and other nearby towns such as Morriston. The inland area is covered by large swathes of grassland common overlooked by sandstone heath ridges including the prominent Cefn Bryn. The traditional agricultural landscape consists of a patchwork of fields characterised by walls, stone-faced banks and hedgerows. Valleys cut through the peninsula and contain rich deciduous woodland. Much of Swansea is hilly with the main area of upland being located in the council ward of Mawr. Areas up to in elevation 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. Climate Swansea has a temperate oceanic climate. As part of a coastal region, it experiences a milder climate than