The authority's archaeologists have since found evidence of the bloomery forge, a dam, a wheelpit, and slag heaps. |
Work went on continually so the fire never went out, which meant a typical bloomery had an output of about 600 kg of iron a day. |
Bog iron is also believed to have been used at a bloomery near Golspie, Sutherlandshire. |
In 1408 the bishop of Durham established the first water-powered bloomery in Britain, with the power apparently operating the bellows. |
This pumping of airstream in with bellows is known as cold blast, and it increases the fuel efficiency of the bloomery and improves yield. |
Old inhabitants have a tradition that there was a bloomery in Tollie bay on Loch Maree. |