Castle Roy is a late 12th or early 13th century stone rectangular enclosure fortress, founded by the Comyns. Built on a rocky hummock, that was probably altered to improve the defences, there is no trace of an encasing ditch. The high curtain walls, are flanked on the north angle by a square tower and the break on south angle, is possibly the site of an another tower. A pointed arched gateway pierces the north-east wall and adjacent to the tower is a north-western pointed arched window. Internally in the wall on the western angle, is an embrasure which was probably a garderobe because above is a projecting garderobe chute in the outer wall. This indicates that one or two storey wooden lean-to buildings, stood against the inner walls of the courtyard but sadly no history of the castle survives. 4 miles north-west at Dulnain Bridge is Muckrach Castle and 24 miles south-west at Kingussie is Ruthven Barracks.