If it is, we have a huge problem.
To know why its a problem, answer the following:
Is it possible to drive from Johannesburg SA, till Santiago, Chile?
If it wasnt Reb Moshe it was another big godol. Ben up to Alaska a few times and I can tell you from ANC north its not so easy regarding davening as it really never gets dark in the summer (opposite in the winter)
and Shabbos is another problem unless again you are Chabad an dthen you can do as they do.No I was never up there over Shabbos. and the ships for the kosher tours usually dont go that far North