Elven Cities

[Inziladun]

The quote to which Alfirin refers may be this one, from Barrels Out of Bond:

The wine, and other goods, were brought from far away, from [the Wood-elves'] kinsfolk in the South, or from the vineyards of Men in distant lands.

The wine later was said to have been "of the great gardens of Dorwinion", and to me, in the context of the earlier quote, would indicate that those at Dorwinion were Men. Since that was so near the Sea of Rhûn, a place that was not especially hospitable to the West, it's difficult to picture Elves living there. Perhaps there was a settlement of them near the confluence of the Carnen and the River Running, northwest of Dorwinion, though that's mere speculation.