 The gold production at Dolaucothi alone may have been of economic significance.The production of goods for trade and export in Roman Britain was concentrated in the south and east, with virtually none situated in Wales.This was largely due to circumstance, with iron forges located near iron supplies, pewter (tin with some lead or copper) moulds located near the tin supplies and suitable soil (for the moulds), clusters of pottery kilns located near suitable clayey soil, grain-drying ovens located in agricultural areas where sheep raising (for wool) was also located, and salt production concentrated in its historical pre-Roman locations.