rockhopper wrote:CG.....Caisteal Grugaig ?
T.....Telve ?
T.....Troddan ?
DT.....Druidaig Lodge ?
ED.....Eilean Donan ?
Almost all correct. To illuminate:
CG is Casteil Grugaig aka Dun Totaig (DT) aka Totaig Broch,
G is Grugaig who lived there and was the witch mother of the giants Telve and Trodder who built their own brochs in Glenelg (just over the hill) , Dun Telve and Dun Troddan.
ED, which probably gave it away (I'm too kind), is Eilean Donan which can be seen from near the broch.
Your go now.