Hm, possibly, though I just didn't know if it fitted with the general theme of the Articles section, and was concerned it might a) be too personal in style and b) might touch on political stuff a bit much. Vulcanology I guess should be the arbiter there.
You're of course right about the directions, thanks for that (and thanks to Cara for pointing out a couple more errors I made).
And yes, I think Saltborough is closer to how it would have developed in English, I used "Saltcastle" partly because I like it more and partly because it maybe makes the original meaning of the etymology a bit clearer.