In Session 202: The Encroaching Shadow last Tuesday, there was a discussion how Elrond could say that "The Shadow has crept now to the feet of the Mountains, and draws nigh even to the borders of the Greyflood..." and naturally, looking at the map, there was confusion because the roots of the Misty Mountains and the Greyflood are no small distance apart. It seems illogical for Elrond to mention the Greyflood if the Shadow is only just getting to the Mountains. Therefore, Professor Olsen surmised with suggestions from the Discord that Elrond was referring to the combined Shadows of Mordor and Isengard. It's a very good suggestion, however there may be an alternate explanation: what if Elrond is referencing the western side of the mountains, saying the Shadow has crept to the feet of the mountains facing Rivendell, and is now approaching the Greyflood.