Mayfield is a suburb of Cork City. It is located to the north-side of the city centre. Originally called Baile na mBocht, Mayfield is bounded to the north by the Glen River Valley, an aquiferous geological formation produced by a receding glacier during the last Ice Age. This area contains some unique habitats, flora and fauna, including the small cudweed and the sand martin, a migratory bird species that returns from North Africa each spring to breed in the porous sand cliffs along sections of the river valley north. There are a number of schools, pubs, shops and restaurants in Mayfield, which is perhaps best known for its association with former Manchester Utd and Ireland captain Roy Keane. Other amenities in the area include a business park, supermarkets, a sports complex and an array of bus stops which provide access to the city centre.