Berriedale Castle (3)
The drawbridge obviously spanned the gap from the man-made buttress on the right to the natural buttress on the left.  There are no surviving drawings showing exactly where the gatehouse stood, but it must have been very close to the drawbridge, and therefore well forward of the big wall further to the right.  The site reminds me a lot of Buchollie Castle (and Old Wick, which was owned by the same family as here), where the gatehouse is a tall and narrow tower, set forward of the castle, behind which a defended passage leads to the rest of the castle, and I imagine there was something similar here.
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