In reply to ElvisMax1:
I, too, think the Scottish Rock picture is wrong, and that it goes up the buttress to the right of the one it's marked on in in that picture.
The thing we found slightly confusing when we did it (long ago!) was that it was really a slab, rather than a ridge. Good fun, though I remember finding it quite scary in big boots in the damp, and it tops out into some mildly unpleasant terrain.