BC, initially copper followed by bronze. The climate during the Early Bronze Age (c. 2100-1400 BC) is thought to have been warmer than at present, as there are many remains from this period in what are now bleak uplands. Much of the copper for the production of bronze probably came from the copper mine on the Great Orme, where prehistoric mining on a very large scale dates largely from the middle Bronze Age. In particular copper from the Great Orme mines appears to have been used for the production of bronze implements of the Acton Park Complex, named after a hoard found at Acton Park near Wrexham. These tools, particularly axeheads, were developed towards the end of the Early Bronze Age and are innovative in both metallurgy and design. They were widely exported, with examples being found along the continental coast from Brittany to north Germany. Burial practices in the Bronze Age differed from the communal tombs of the Neolithic period, with a change to burial in round barrows and the provision of grave goods. Inhumation was soon replaced by cremation and in Wales the cemetery mound with a number of burials had become the standard form by about 2000 BC. One of the most striking finds from Bronze Age Wales was the gold cape found in a tomb at Bryn yr Ellyllion, Mold, Flintshire dated to 1900-1600 BC, weighing 560 g and produced from a single gold ingot. Very few weapons have been found in Early Bronze Age graves in Wales compared with other objects, and the lack of traces of earlier Bronze Age settlements is thought to indicate that farms or hamlets were undefended. From about 1250 BC there was a deterioration in the climate which became more marked from about 1000 BC, with higher rainfall and much lower summer temperatures. This led to an increase in peat formation and probably the abandonment of many upland settlements. It has been suggested that this led to conflict and to changes in social organization, with the earliest hillforts appearing about 800 BC. The Late Bronze Age saw the development of more advanced bronze implements, with weapons becoming increasingly common. While the weapons reflect introduced styles, there are pronounced regional variations in the styles of tools, particularly axes. On the basis of tool types, Wales can be divided into four regions, the south-east, south-west, north-west and north-east. These regions show an