SCOTLAND. 2012. Farmer Keith Jackson with his Iron Age pigs, Orbost Farm, Orbost Estate, Isle of Skye, Inner Hebrides. Iron Age pigs are a cross between a traditional British pig and a wild boar, so named because such a breed is thought to have been used in domesticated farming during the Iron Age. They are slow-maturing pigs that produce a deeply-coloured and highly-flavoursome pork.