In an Angus glen. 10/94 ~ Don't know if it's generally unlocked, but it was when I passed it, on the way to another bothy on the other side of the hill . . .
. . . this one in fact, on a lonely Angus moor . . . 10/94
. . . where I spent a peaceful evening. ~ The 2 litre bottle contained peaty water, in case you were wondering.