When did the last of the High Elves leave Middle Earth ?

[Inziladun]

Originally Posted by Galin

I don't know if Tolkien meant the two texts to be taken this way: in other words, maybe the text published in The Lord of the Rings was meant to supersede the description in Of the Rings of Power; but in any case it appears that 'High Elves' can have more than one application.

Upon further examination, it seems 'High Elves' in LOTR does refer exclusively to the Noldor.

'These are High Elves! They spoke the name of Elbereth!' said Frodo in amazement!

'Gildor Inglorion of the House of Finrod. We are Exiles, and most of our kindred have long ago departed and we too are now only tarrying here a while, ere we return over the Great Sea. But some of our kinsfolk dwell still in peace in Rivendell.

Exiles=Noldor

I found another quote in ROTK that supports the statement in the Prologue.

Then Elrond and Galadriel rode on.....with them went many Elves of the High Kindred who would no longer stay in Middle-earth.

So, the answer to the question of when the last of the High Elves left for the West seems to depend upon which text Tolkien intended to be the 'final word'; the Silmarillion or the LOTR.
I would prefer to think they all went with Elrond, as that simply seems the most fitting to me.