Geography of Sheffield (Totley Brook passes south of Totley and meets Old Hay Brook at Needham's Dyke). The Sheaf flows northwards to join the River Don near Blonk Street Bridge in the city centre. This lower section of the River Sheaf together with the River Don, between the present Blonk Street and Lady's Bridge, formed part of the perimeter of Sheffield Castle. Porter Brook's source is just inside the Peak District National Park, to the west of the city, at Clough Hollow, also near Ringinglow. From here it flows eastward to meet the Sheaf, at a point now located underneath Sheffield Midland Station.
English Institute of Sport, Sheffield boxing, fencing, futsal, judo, netball, table tennis and volleyball. There are many clubs which meet at the venue including City of Sheffield Athletic Club, Sheffield Sharks, City of Sheffield Arrows, Sheffield Sword Club, Concorde Netball Club, England Netball, and England Volleyball, as well as hosting snooker's main professional academy. The centre also often hosts sports days for local secondary schools. The venue hosted the European Indoor Trails & UK Championships (athletics) between the 14 – 15 February 2009. They also hosted the European Fencing championships in July 2011. Since 2008, the venue has hosted qualifying matches for The World Snooker