Cloghernagh's northern side forms the steep southern walls and cliffs of the scenic U-shaped hanging valley of Fraughan Rock Glen, which then falls into the Glenmalure valley below; the scenic high corrie lake of Arts Lough , lies high on its north eastern flank. Cloghernagh forms a horseshoe around the Fraughan Rock Glen with Lugnaquillia and Benleagh , and another horseshoe shape around the glen of the Carrawaystick River with Corrigasleggaun , and the corrie lake of Kelly's Lough.