 All of the surviving megalithic tombs from the Early Neolithic period have suffered from neglect and the <unk> of agriculture . Although archaeologist Paul Ashbee noted that the Coldrum Stones represent " Kent 's least damaged megalithic long barrow " , it too has suffered considerable damage , having become dilapidated and fallen apart over the six millennia since its original construction . Most prominently , the eastern side has largely collapsed , with the stones that once helped to hold up the side of the barrow having fallen to the bottom of the slope . Conversely , it is possible that the sarsens at the bottom of the slope were not part of the original monument , but were stones found in nearby fields which were deposited there by farmers . 
