
Walking or riding, the eastern shores of Dorne would inevitably have been where they first set foot upon Westerosi soil. They came to Westeros not on longships but afoot, over the land bridge from Essos-the remnants of which exist today only as the Stepstones and the Broken Arm of Dorne. Unlike the Andals, who came later, the First Men were not seafarers. The Dornishmen boast that theirs is the oldest of the Seven Kingdoms of Westeros.

Twitter, worth noting that the Stepstones are fairly recent, geographically, as they are the remnants the Land Bridge that connected Westeros with Essos. Do we know the names of any of the other Stepstones? Thanks! Also that Tyrosh is sometimes considered a part of them but isn't really one. Hello! I've seen that two of the islands in the Stepstones have been named, Bloodstone and Grey Gallows. Having tweeted Elio and Linda, the co-authors of The World of Ice and Fire, they have said they they don't know of any other names either. So Spake Martin, Canadian Signing Tour (Toronto) So now i'm not even sure it is part of westeros. And apparently there are several more islands of simalar size that are extend further east. His answer was that it was just one of the stepstones and he hadn't even come up with an actual name for it. I asked about the unmarked island near the Dorne. But i sliped in a quick one during the book signings. I never got to ask a question during the Q&A.

Though the post is from 2006 it's likely he still hasn't named any of the others.

If he hadn't named one of them it's likely he hadn't named more than that one too. Martin once commented that he hadn't named one of the islands yet (although I haven't confirmed this it's likely this post is referring to the most south western island). I haven't found any information on the names of any of the other islands in the Stepstones but I have found out that George R.
