blaeu's map of the 1660s shows the castle as intact with a pale or fence on the side of the castle not demarcated by the two deep glens. a karltoun mill and mains are shown, both probably associated with the cathcarts as lairds, the mains farm being, as was usually the case, set aside for supplying food to the laird, his family and servants. john adair records the castle in his map of 1685. herman moll's map of 1745 records karleton (sic) and shows the old inland road to portpatrick running close by. in 1775 carlton (sic) is shown, not seemingly as a ruin, with the portpatrick road now following the coastline. the 1775 road map by taylor and skinner is the first to clearly record the castle as a ruin although still held by a cathcart baronet.