Hill of Wirren is a Graham of 678 m in Angus. No register hill in Angus has a greater drop, though Glas Maol is higher.
Its closest neighbour in this register, Mount Battock, is 10.9 km away. All four of its nearest neighbours are higher, up to Mount Keen at 939.4 m. It sits below Mount Battock, only 10.9 km to the north and 100 m higher. It shares its height of 678 m with Sawel. It is the lowest of the five register hills in the Braemar to Montrose region, where Mount Keen is highest. On the Grahams height ladder it sits between Carn Mhic an Toisich (678.2 m) and Carn Breac (677.8 m). Its nearest higher summit, West Knock (689.9 m, 5.1 km west), is a listed top not profiled here. The summit is marked by a trig point.
