machair area behind the dunes is very fertile and has attracted
people since prehistoric times. This means that there are hundreds
of archaeological sites scattered in the dunes. Many had been covered
over by drifting sand, but can be re-exposed once the wind has
blown the sand away.
The Coll Archaeology Association is looking at the archaeology
of the island, discovering new sites and monitoring sites already
known about. It regularly visits the dunes to look for newly uncovered