 Heron Pike’s eastern side features Erne Crag and Blind Cove as it falls away quite steeply towards Rydal Beck.At the base of Erne Crag is an old quarry, the mouth of a cavern quite easy to locate.The fell's western flank drops towards Grasmere and has the small Alcock Tarn on its lower slopes at a height of 360 m (1,180 ft).