Georgraphic Distribution One of the great mysteries of classical archaeology is the spartan worldwide distribution of vitrified forts with the exception of Scotland.. Scotland There are at least 50 such forts throughout Scotland. Among the most well-known are Dunnideer, Craig Phadraig (near Inverness), Abernathy (near Perth), Dun Lagaidh (in Ross), Cromarty, Arka-Unskel, Eilean na Goar, …