This is Hraundrangi (1114m/3655ft) in Öxnadalur, Hörgársveit in north-eastern #Iceland, on a cold and misty December day.
Its unusually sharp point - less than 0.5m² (5.4ft²) at the top - with the rest of the ridge is all that remains after much of the original mountain, Háafjall, collapsed in a rockslide centuries ago.
