Birreencorragh is a Hewitt of 698 m in Mayo. Its closest neighbour in this register, Nephin, is 8.4 km away.
Its drop of 583 m is 84% of its height: the col linking it to higher ground is only 115 m above sea level. It sits below Nephin, only 8.4 km to the east and 108 m higher. On the Hewitts height ladder it sits between Ben Gorm (699 m) and Allt-fawr (697.9 m). The summit is marked by a trig point. It falls on two OS 1:50,000 sheets, 23 and 31.