Tummel, Tay or Both?

[lukeyrobertson]

I've been researching the traditional lands of the Robertsons and can't quite figure it out geographically. I've got it narrowed down to the Loch Rannoch area, Kinloch Rannoch, Athol, Bruar and Glen Garry. Would they also include Strathtay, loch Tay, and slightly to the SW of Pitlochry towards Loch Tay? Any help would be appreciated. And in Strathmore woolen terms, would the more suitable kilt be the Strathtummel or the Strathtay, or both?

Thanks everyone who knows and can help. It's just that the maps I've been looking at are a little unclear.

With appreciation.
David