Croagh Patrick, nicknamed the Reek, is a 764 metres (2,507 ft) tall mountain and an important site of pilgrimage in County Mayo, Republic of Ireland. It is 8 kilometres (5 mi) from Westport, above the villages of Murrisk and Lecanvey. It is the third highest mountain in County Mayo after Mweelrea and Nephin. On "Reek Sunday", the last Sunday in July every year, over 15,000 pilgrims climb it. It forms the southern part of a U-shaped valley created by a glacier flowing into Clew Bay in the last Ice Age. Croagh Patrick is part of a longer east-west ridge; the westernmost peak is called Ben Gorm.