Corndon Hill () is a hill in Powys, Mid Wales, whose isolated summit rises to 1,683 ft above sea level. It is surrounded on three sides by the English county of Shropshire and forms a prominent landmark in the Wales-England border. Corndon's prominent western edge appears to form a separate hill and is known locally as Lan Fawr (Welsh: 'Big Hill'). It is frequented by walkers and ramblers from car parks nearby at Mitchell's Fold for example. There are spectacular panoramic views from the summit, and it is itself an important landmark for the surrounding countryside and towns like Montgomery. It is close to villages such as Church Stoke and Hyssington. The hill is geologically part of the Shropshire Hills range of hills lying mainly to the north, east and south of the summit. The immediate area to the west is the Vale of Montgomery and the River Severn. The Cambrian Mountains are visible beyond to the far west. The Stiperstones and Shelve lie to the immediate north, with Caer Caradoc and the Long Mynd to the east. Archaeology There is a large Bronze Age cairn near the hill summit, and several more exist in the area around the summit. Such circular stone burial cairns are common on most summits in Wales and they commonly date from ca 2500 BC up until ca 700 BC, when iron slowly started to displace bronze for tools and other goods. Such cairns usually contain one or more cremation urns, and are often placed within a stone cyst or box within the mound. The Bronze Age stone circles of Mitchell's Fold and the now largely destroyed The Whetstones lie at the foot of the hill within Shropshire and Powys respectively. There is another circle nearby in Shropshire, the Hoarstones. The hill lies about 2 miles east of Offa's Dyke, built during the 8th century to mark the border between Wales and England (or Mercia). Stone Axe Factory (Group XII) In 1951 Professor F W Shotton of Birmingham University identified the source of the rock used for shafthole battle-axes, splitting mauls and axe hammers as picrite which had been quarried from Corndon Hill. Picrite is a hard volcanic or igneous rock. Production sites of stone axes and shafthole implements have been grouped by petrology and the Hyssington/Corndon Hill implements are known as Group XII. As the production of these implements in the Late Neolithic and