[IMAGE 14: Excavation plan of one of the Summerlee furnaces showing the circular hearth surrounded by rectangular supports for the outer structure of the furnace.]
![[IMAGE 14: Excavation plan of one of the Summerlee furnaces showing the circular hearth surrounded by rectangular supports for the outer structure of the furnace.]](https://www.digitscotland.com/wp-content/uploads/2020/04/IMAGE-14.jpg)
[IMAGE 14: Excavation plan of one of the Summerlee furnaces showing the circular hearth surrounded by rectangular supports for the outer structure of the furnace.]
