The greatest visual distance between two points on Earth

Wiki mentions that the Vatnajokull glacier in Iceland might visible from 340 miles away from the Faroes

I suspect that this is some sort of meteorological phenomenon like an ice blink rather than a real line-of-sight view

I don’t have a cite, but I remember hearing that Kilimanjaro is indeed the winner of this - and that Mt. Diablo, CA it number 2.

Kilimanjaro quite possible, but the Mount Diablo story is total nonsense. You can see three times more from the top of Denali than from Diablo. (You can’t see Mt Shasta from Diablo, either.) It’s not even 4,000ft high. It’s got a car park on the summit, for goodness sake.

Cite for Mount Diablo viewshed (pdf)

So in fact Denali may have four times more of a view, not three.

Well, at least I wasn’t the only person to have heard that little piece of BS.

Oh no. This bit of trivia is like kittens, in that it’s all over the internet. (And surprisingly hard to squash.)

The Mt. Diablo claim is parochial BS. Among other things, the official California State Parks web site for Mt. Diablo makes the claim that it is second. (I live within site of Mt. Diablo). The view is spectacular, but it is only 3,849 ft in elevation from sea level nearby. You can see Half Dome on a very clear day.

If the oceans were drained, Mauna Kea would probably win, as the tallest mountain measured from its base.

Mauna Loa blocks plenty of its line of sight.

Holy crap, I don’t even remember that thread although I was responding in it.

To be fair, I’ve had a few concussions in my life.

Actually, that’s not right. Her implication was that the distance was very small.

What’s the longest and steepest angular view? Ie, on Everest you can look down, but only to the next-highest plateau.