This was a tree that caught my eye whilst hiking in Scotland many years ago (about 15-16 years ago) when I was at uni. The tree was a remnant of the Caledonia Forest which covered much of the highlands at one point in time. Most of it has now gone.
The nearest road (4 or 5 miles of single track dead end road) is a 4 hour walk away. The loch is Loch Dochard, in Glen Kinglass, just south of Rannoch Moor.
I re-visited it some 10 years later, to find the top had gone in the spring storms that very year (it was in the loch).
Loch Dochard, Argyll & Bute, Scotland