11th 1645, after which they declared their support for Parliament. A fair and summer games were held every Whitsun at the summit of Bredon Hill until c.1876. On 17 October 2011 Worcestershire County Council announced that Worcestershire's largest-ever hoard of Roman artefacts, including around 4,000 coins, featuring 16 different emperors, had been uncovered. Geology Like the main Cotswold range of which it is a geological outlier, the hill is formed from a succession of Jurassic age mudstones, limestones and siltstones. The surrounding low ground is formed in the Charmouth Mudstones which forms a part of the Lias Group. These are overlain successively by the Dyrham Formation's siltstones and mudstones, the Marlstone Rock's limestone and sandstone, the Whitby Mudstone Formation, youngest of the Lias rock units, and finally the ooidal limestones of the Birdlip Limestone Formation. The last-named is the lowermost layer of the Inferior Oolite. The relatively flat spurs of Even Hill / Windmill Hill, Castle Hill, Little Hill and Holcombe Nap in the north and east are formed by a capping of the Marlstone Rock. A geological fault crosses the southern margin of the hill. The slopes of the hill beneath the Inferior Oolite rocks of the summit surface are substantially affected by landslips on all sides. The 'Elephant Stone' is the largest of several large pieces of rock which lie in a hollow on the western margin of the summit plateau. It has been suggested that the hollow itself derives from the collapse of a cavern around 1800, the formerly larger stone would have then tumbled into its present position and broken up. Each of these stones is itself formed from smaller fragments of oolitic limestone, naturally cemented together by calcite and likely having gathered in an earlier cleft or 'gull' in the hillside. The King and Queen stones are of similar origin. The cambering which leads to the formation of gulls can be seen elsewhere on the unstable slopes of the hill. Nature and geography Bredon Hill is one of the most important wildlife sites in England, providing a range of habitats including ancient woodland, calcareous grassland and scrub. A large section of the western and northern scarp was designated a Site of Special Scientific Interest (SSSI) in 1955. Since 2005, an overlapping area has also been designated as a Special Area of Conservation (SAC) under the European Commission Habitats Directive. Part of the SAC is a