: Michael, what does that mean? Was Pelargir flooded and the
: people moved upstream from the mouth of the river, or did the
: city stay where it was and the land rose around them, leaving
: them away from the shore? I know that somewhere in HoME, JRRT
: at some point wrote that the shores of ME were changed by the
: Downfall. I just don't remember whether or not he was more
: specific, and whether or not he abandoned the concepts. I seem
: to remember that Lindon and the mouth of the Anduin were
: affected. I don't have the books with me to try to find the
: reference. In any case, it didn't seem to have much affect on
: the elves of Lindon or whoever (Numenoreans?)were living on the
: shores further south. If I find the references I will repost.

Well, "Akallabeth" says the shores were changed, and hills were tumbled, and rivers changed their courses, blah, blah, blah.
Specific detail on Pelargir is given on page 183 of THE PEOPLES OF MIDDLE-EARTH in "The Tale of Years of the Second Age". Christopher Tolkien notes that the statement concerning Tolfalas is not confirmed elsewhere:

  These were much changed in the tumult of the winds and seas
  that followed the Downfall; for in some places the sea rode
  in upon the land, and in others it piled up new coasts.  Thus
  while Lindon suffered great loss, the Bay of Belfalas was
  much filled at the east and south, so that Pelargir which
  had been only a few miles from the sea was left far inland,
  and Anduin carved a new path by many mouths to the Bay.  But
  the Isle of Tolfalas was almost destroyed, and was left at
  last like a barren and lonely mountain in the water not far
  from the issue of the River.

Since Tolkien had to cut a lot of material from the appendices for final publication, it's not clear where the loss of this text means he changed his mind on any of the details or simply had to make the cut, but Christopher notes that Tolfalas appears to be much larger than a mountain on the maps.
------------------
Xenite.Org: Science Fiction and Fantasy