Beinn Chùirn has quite a high topographic prominence of 446 metres being surrounded by glens and low cols. To the north is Glen Lochy and to the south is the Cononish valley. Two km to the east lies another Marilyn hill, Meall Odhar from which it is separated by a col of 473 metres, while three km to the south west lies the Munro Ben Lui across a col of 434 metres. The hill has a fine east facing corrie, Coire na Saobhaidhe, which is small but has steep walls. Just north of the summit at a height of 810 metres is an unnamed circular lochan about 100 metres in diameter.