Early Bronze Age did not employ the same flaking techniques as flint stone axes, which leave recognisable flaking debris, the site or sites of the Corndon Group XII implements production will be harder to identify. However the Clwyd-Powys Archaeological Trust did excavate several small quarry depressions in 2008, but only found evidence of fairly recent disturbance. A stone slab with striations which was suggested was an example of Neolithic art, could equally well have been early plough marks or a hone for sharpening stone edges The main distribution of Group XII implements is in mid-Wales, the Midlands, the Cotswolds and stretching across to East Anglia. By 1988, 93 examples of these implements had been identified and all of these implements have shaftholes for hafting and there are no examples of picrite being used to produce axes. Quarrying The Corndon flagstone quarries are on the south western slopes of Corndon Hill and date from Medieval times. From the air the quarries are still a prominent feature in the landscape. In this area the altered Hope Shales of the Ordovician period on the margin of the dolerite produce finely laminated flagstones which were widely used on building on the Shropshire-Montgomeryshire border. Only a few buildings still have the flagstones as roofing slates, including the Old Post Office at Church Stoke and the porch to Hurdley Farmhouse. References External links www.geograph.co.uk : photos of Corndon Hill and surrounding area guided walk from Cadw Mountains and hills of Powys Marilyns of Wales Sites of Special Scientific Interest in Montgomery Landforms of Shropshire Mountains and hills of England