Ruin of Doriath - Final Part

[Maédhros]

So you would not follow letter 247, which returns the role to Beren? I see no reason to think that the story in this letter necessitates the placing of the ford at any particulary place.

I'm sorry for not making myself clear. In the case of the Letter 247, it is explictly staten that Beren regains the rôle that he once had in TY B and that the battle took place about a ford across one of the Seven Rivers of Ossir.

My point was that because Tolkien in that letter changed the rôle of Celegorm and Curufin back to Beren, is it reliable to consider that the battle between the dwarves and Beren and Co. would be in a ford over the River Ascar. If one part of the note was changed, does that make the other part dubious?

Then again, I think that you have made a fine point with:

Of these two options, I am inclined to think, in view of the lack of any evidence of a change from the story in B, that 1 is more likely. If this is the case, then the battle was and always remained at Sarn Athrad, and so should it in our version, with Sarn Athrad/Athrad Daer, as per "Maeglin", again over Gelion/Duin Daer.