In Australia -it was one in the South of Western Australia.
Overseas it was the highest mountain in europe but of course I didnt actually climb it which was your question!
I went in some sort of contraption and only mucked about in the snow near the top.
We dont have many to climb in Western Australia.
I almost climbed one in Victoria the one time I went skiing in the snow as I could not stay on those chair lifts where you put the thing between your legs and it automatically goes up -for some reason I would fall off.
Needless to say I didnt go skiing tiwce.
Had the same problem when I first began skiing in Canada many moons ago. I fell into a very deep snowdrift and had to be rescued. How embarrassing when I saw many students from the school I was teaching at, some as young as 4, scooting down the slopes without stocks even.