Auldton Mote is a medieval earthwork motte and bailey fortress, which has been damaged by the digging of antiquarian trenches. The motte with its oval summit, is encased by a ditch and a counterscarp bank but with its dense cover of trees, is best viewed in winter. The raised rectangular bailey, is partly encased by a bank and ditch and the castle may have originally been defended by marshland. A gap in the rampart on the north-west side of the bailey, is possibly the position of the original entrance. Half a mile south-east is Frenchland Tower and 2 miles south-west is Lochhouse Tower.