of a fire-place and aumbry, of this clearly later building together with map evidence suggests otherwise and in addition the OS map evidence suggests a typical square or oblong tower castle shaped building rather than a relatively unfortified laird's house with relatively thin walls, many doors at ground level, large windows, etc. akin to buildings such as the Place of Auchinleck. Canmore gives measurements for the Corsehill Castle tower remnant as nearly 3m thick and 10m high. If the 'tower' in Frances Grose's engraving was that of the castle then the wall remnants associated with it would have to be at least 10m high and six or more stone courses thick, which the engravong does not show. With these measurements Corsehill House would have been a very large building indeed. The footprint of Corshill House as shown by the engraving also seems far too large for the knoll on which the surviving remnant of Old Corsehill Castle still stands. The 1779 map by Crawford does not indisputably show Corsehill as a ruin although by this time the lands of Cocklebie have extended across the once prestigious avenue of trees. Fullarton in 1858 records that "..the ancient castellated mansion of Coreshill has been wholly removed - not a stone now remaining to mark its site; nor does any vestige of its garden or other decorations remain to procalim its former state and fallen grandeur.". He goes on to state that the site was well remembered, the last parts of the building having been removed around 1800 and that a fine avenue of magnificent trees used to run down into Stewarton. Herman Moll's map of 1745 shows a 'Reuinsk' to the west of the Clerkland Burn and 'Corshill' to the west of it whilst Roy's map of 1747 shows a square shaped 'Old Crosshill' with a 'U' shaped 'Crosshill' to the west of the burn together with a 'mains' farm. Armstrong's 1775 map shows 'Ruins' and 'Corshill' depicted as a house standing to the west of it. Dobie categorically states that no records in Ayrshire exist of a 'Ravencraig Castle' and goes on to record that the building on the west side of the Corsehill Burn has been a ruin since 1608 and that the area it stands in was once called 'Corsehill Park. It is worth noting that the Scots for a raven (Corvus corax) is a 'Corbie'. The Blaeu map