The Sow of Atholl is not a hill rich in geographical highlights, its steep slopes are covered in heather interspersed with grass and the occasional boulder. Its one noteworthy feature is the steep valley to the west of the hill which prevents a straightforward walk to the adjoining Munro of Sgairneach Mhòr which lies three km to the SW. The nameless steep glen has been cited as a fine example of a Parabolic glacial valley. It drops 200 metres from the summit plateau of the Sow in a short distance and although the slopes are not unmanageable for a walker, most will contour round the head of the valley when traversing between The Sow and Sgairneach Mhòr rather than take a direct route. The presence of this steep valley gives The Sow its required prominence to give it the status of a separate mountain. All rainfall on the hill goes south to join the drainage basin of the River Tay and reaches the east coast of Scotland at the Firth of Tay.