 This included a few places in Wales.However, as Roman influence grew, the army was able to obtain tiles from civilian sources who located their kilns in the lowland areas containing good soil, and then shipped the tiles to wherever they were needed.The Romans occupied the whole of the area now known as Wales, where they built Roman roads and "castra", mined gold at Luentinum and conducted commerce, but their interest in the area was limited because of the difficult geography and shortage of flat agricultural land.