Shangri La - a hidden valley in the Himalaya, as written about in the book Lost Horizons by James Hilton.
Surely this is the valley?
Overlooked by Everest, Lhotse and Makalu with over 4000m of vertical elevation.
This shot was taken from near our camp 4 in the valley floor at 4250m - a rest from the higher altitude areas above us.
The frost on the foreground plants was so blue compared to the sunlit mountains behind.