The Valley of Stones: A landscape of sarsen boulders in Dorset
The Valley of Stones is a National Nature Reserve in Dorset, England, that is home to a unique landscape of scattered sarsen boulders. These large, naturally occurring stones are thought to have formed during the last ice age, when freeze-thaw cycles caused the sandstone on the nearby hills to fragment and slump downhill. The sarsen stones in the Valley of Stones are some of the largest and most impressive in southern England. They range in size from small pebbles to boulders that weigh over 100 tons. The stones are a warm, honey-brown color and have a weathered, textured surface. Among the boulders lies a hidden treasure: a Neolithic polishing stone. This polishing stone, or polissoir, is a large boulder with a smooth, concave surface. It is thought to have been used by Neolithic people to sharpen and polish their stone tools. The polishing stone was discovered by a team of volunteers who were clearing vegetation from the valley floor. It is the only undisturbed polissoir to have been...