Benbrack (Irish: Binn Bhreac, meaning 'Speckled Peak') at 582 metres (1,909 ft), is the 251st–highest peak in Ireland on the Arderin scale; while it does not have the elevation to be a Vandeleur-Lynam, it has the prominence to rank as a Marilyn. Benbrack is situated on its own small massif to the north of the core Twelve Bens mountain range in the Connemara National Park in County Galway, Ireland. It is the 10th-tallest of the core Twelve Bens, and is linked by a deep col to Muckanaght, which is itself attached by a high ridge to the tallest mountain of the Twelve Bens range, Benbaun at 729 metres (2,392 ft).
Connemara National Park (Irish: Páirc Naisiúnta Chonamara) is one of eight national parks in Ireland, managed by the National Parks and Wildlife Service. It is located in the northwest of Connemara in County Galway, on the west coast.
Letterfrack or Letterfrac (Irish: Leitir Fraic, meaning 'The Speckled Hill') is a small village in the Connemara area of County Galway, Ireland. It was founded by Quakers in the mid-19th century. The village is south-east of Renvyle peninsula and 15 kilometres (9 miles) north-east of Clifden on Barnaderg Bay and lies at the head of Ballinakill harbour. Letterfrack contains the visitors centre for Connemara National Park.
Diamond Hill or Bengooria (Irish: Binn Ghuaire, meaning 'Guaire's peak') is an isolated peak overlooking the village of Letterfrack, in the northwest corner of the Twelve Bens in Connemara National Park in County Galway, Ireland. At only 442 metres (1,450 ft), it does not rank as an Arderin, or a Vandeleur-Lynam; however, it has the prominence to rank as a Marilyn.
Ballynakill Lough is a lake in Connemara, County Galway, Ireland. The lake is fed by a short stream connected to the nearby Atlantic Ocean. Tooreen Bog is located on the lakes south coast. The village of Cleggan is located to the west.