Castle Hill Barracks, Aberdeen

“Thursday, April 30th.—I was again at the barracks in the afternoon; appearances just such as on the former day. I preached thereafter at the foot of the Barrack Hill to an immense audience. I had been thinking on the subject of conversion, but I was led in the time of the opening prayer to think of Matthew xi. 28, and I preached on it with perhaps more of the divine assistance than I had done at any time before. Towards the end especially, many were screaming and in tears. ... I felt as if I could pull men out of the fire; indeed, I never had more of this feeling than this evening, and on Sabbath evening in Castle Street. In order to escape the crowd, I slipped into the barracks, and after walking up and down in concealment a little, I went up to some of the men and spoke to them of Jesus and salvation. I got a good many of them to come and have a last prayer-meeting before our parting, which we had accordingly."

From Rev W C Burns' Journal.

The position is a guess.