And another for Loch Awe:
The occasion of the making of Loch Awe (Gaelic, Loch Odha) was the dun-coloured cow possessed by the Cailleach Bheur.
“This cow was so much thought of by the Cailleach, that there was never a grassy meadow or flowery dell better than another but was reserved for the animal, even if the place were a hundred miles away.
“And as for drinking water, there was no well or mountain spring on the surface of the earth that was good enough for the dun cow, but the well of virtues on the top of Ben Cruachan.
“Even if the animal had been pasturing in the Mull of Kintyre, and it was not seldom that that happened, the Auld Wife would come every step of the way with her to the top of Cruachan to give her to drink.”
It was on a hot day that, tired with following her cow, she had just managed to tether her beside this well and stretched herself out to rest beside it, when, falling asleep, the waters burst forth, and thundered down the rocks, never stopping till they had filled the hollow valley of Loch Awe.
Hull, Legends and Traditions of the Cailleach Bheara or Old Woman (Hag) of Beare, in Folklore, Vol. 38, No. 3 (Sep. 30, 1927), p252-253.