A square-built simple keep, built in a well-nigh impregnable position on a rocky point above the Keltny Burn, six miles west of Aberfeldy, Perthshire. Massively strong, the thick walls enclose vaulted cellars and store-rooms on the ground floor and a Great Hall on the first floor.

Garth was built by the notorious Alexander Stewart, Earl of Buchan, "the Wolf of Badenoch", in about 1400. It became his southern stronghold from which he ravaged the countryside. He is said to have been imprisoned for a time in his own dungeon of Garth on the orders of his exasperated father, Robert II.

In the nineteenth century Garth had become a ruin and was in danger of falling down completely but was bought and saved from further deterioration by Sir Donald Currie. By the 1960s it had again become dangerous and was once more restored, this time preserving the old exterior but inserting an unashamedly modern interior with under-floor heating beneath the marble floor and a marble dining table, also electrically heated from within to keep ones elbows warm. The whole building, from first floor level up, was open-plan and rather disconcerting. It is a pleasure to be able to report that in the 1990s the castle changed hands again and is now in the process of being put back once more to something like what it must have been in the time of the Wolf, though with glass in the windows and the other usual concessions to modern living.