Hmmm, well, I think the info and the pic add a bit of depth to the Valley of the End. The fact of it being made by the fight is mentioned by Kakashi to Pakkun when he picks Naruto up.   About Madara, sorry about removing the Tobi/Madara bit, I totally didn't mean to, I think. The pic is from the manga too...not to great a scan, but good for illustration purposes for the time being.