Addyman Archaeology undertook archaeological mitigation at Kyle Castle, Dalblair, East Ayrshire, following unauthorised works to the Scheduled Monument. Kyle Castle (SM 3311) is located on a promontory at the confluence of the Glenmuir and Guelt waters. The castle now comprises the remains of the north side of a substantial masonry tower and a series of earthworks at the top of the promontory; a flat platform to the north overlooking the Glenmuir water contains rig and furrow earthworks of likely post-medieval date. The castle is thought to be of 15th/16th century date and was abandoned in the first half of the 18th century. The section exposed during the quarrying of 2019 was cleaned and recorded. Rig and furrow was noticeable in section and a rubble drain or a soakaway was discovered. The presence of fragments of a horseshoe drain within the rubble fill indicate that the drain is posterior to the 18th century.
A Ruchonnet (2022) studied this question.