The Castle of Leys (4)
This drawing was made following Sir James Horn Burnett's 1850 excavation.  The walls I have added red lines to appear to have supported buildings (the upper reaches of which may possibly have been built of timber), while the other walls were principally enclosure walls (that may have had lesser buildings built against them). 

<i>(Drawing courtesy of <a href="http://www.canmore.org.uk" rel="noreferrer nofollow">www.canmore.org.uk</a> )</i>
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