A hill figure is a large visual representation created by cutting into a steep hillside and revealing the underlying geology. It is a type of geoglyph usually designed to be seen from afar rather than above. In some cases trenches are dug and rubble made from material brighter than the natural bedrock is placed into them. The new material is often chalk, a soft and white form of limestone, leading to the alternative name of chalk figure for this form of art. Hill figures cut in grass are a phenomenon especially seen in England, where examples include the Cerne Abbas Giant, the Uffington White Horse, and the Long Man of Wilmington, as well as the "lost" carvings at Cambridge, Oxford and Plymouth Hoe. From the 18th century onwards, many further ones were added. Many figures long thought to be ancient have been found to be relatively recent when subjected to modern archaeological scrutiny, at least in their current form. Only the Uffington White Horse appears to retain a prehistoric shape, while the Cerne Abbas Giant may be prehistoric, Romano-British, or Early Modern. Nevertheless, these figures, and their possible lost companions, have been iconic in the English people's conception of their past. History The creation of hill figures has been practised since prehistory and can include human and animal forms. Cutting of horses is common, as well as more abstract symbols and, in the modern era, advertising brands. The reasons for the creation for the figures are varied and obscure. The Uffington Horse probably held political significance, since the figure dominates the valley below. It probably dates to the British Iron Age since coins have been found exhibiting the symbol. The Cerne Abbas Giant might have been a work of political satire likely of the Early Modern period. Wiltshire is a county with a large number of White Horses; 14 have been recorded. The figures are usually created by the cutting away of the top layer of relatively poor soil on suitable hillsides. This exposes the white chalk beneath, which contrasts well with the short green hill grass, and the image is clearly visible for a considerable distance. Although most of the figures are of great age, many are relatively new. Devizes in Wiltshire created a large white horse for the 2000 Millennium celebrations and in October 2009 celebrated this with an aerial photo of volunteers making the figure 10 for