This is in the south corner of Morgan's parade ground. The old granite steps were stripped at some point.
We're at the big end of the triangle formed by Morgan's 3rd and 4th walls and Battery Duportail. I doubt many people ever come back here, since you have to walk halfway around the fort from the sally port to get to the little "back door" in the south bastion. Most of the people I see visiting these old forts do a cursory walk-around, following the printed guide, maybe snapping a few pictures, then leaving in under an hour.
I can't do that. There's so much to see! I'll typically carry a notebook, tape measure and camera, making sketches and getting detail photos, always on the lookout for stuff like this.