New discoveries made in Inverness have fuelled speculation among experts that it was an important area of prehistoric iron production.
Rare finds of well-preserved metalworking hearths, or furnaces, have been uncovered at Beechwood during work by Edinburgh-based AOC Archaeology.
Archaeologists believe the discoveries date to the Iron Age.
Highlands and Islands Enterprise (HIE) is spending £25m on preparing the land for the new Inverness Campus.
The University of the Highlands and Islands and businesses will eventually occupy buildings constructed on the former farmland.