[SpicyUme]

There's a nearly 450 km photo of the Ecrins from the Pyrenees!

https://beyondrange.wordpress.com/2016/08/03/pic-de-finestre...

That's a cool thing to track, I've been surprised by the places I've seen the Seattle skyline reflected on the water near sundown. No crazy distances, but there's a small time period where it flashes into view.

[lloeki]

On clear days from the Vosges mountains you can easily see the French Alps (and even part of Austrian Alps if lucky), and especially the Mont Blanc. e.g places like the Ballon D'Alsace, and even all the way up north to Donon or Nideck+Schneeberg†.

Quite a bit shorter in distance (between 200 and 300km depending on where you sit) but visually stunning.

I seem to recall in older times there used to be some light semaphore infrastructure to communicate over these distances.

https://web.archive.org/web/20251008080738mp_/https://i72.se...

https://www.vosgesmatin.fr/environnement/2023/12/19/quand-le...

https://www.vosgesmatin.fr/environnement/2022/11/12/quand-le...

† Which I hiked this year, unfortunately only had a phone so all I get is the memory of seeing the Mont Blanc from there.

[SpicyUme]

Those are great pictures. And I've been near there! I've seen the Alps from near Saignelégier then we drove through Plombieres-les-Bains on the way north. On certain clear winter days I bet the mountains look bigger due to lensing.

[DiggyJohnson]

Panorama in the first of three links is stunning.