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.
Sheffield City Centre had been on hold since 2008 due to the recession and was cancelled in its current form all together in July 2013 when Sheffield City Council decided to relieve developer Hammerson of their development rights. Sheffield City Council announced in late 2013 that they will proceed with their own development scheme to replace the axed Sevenstone project. Sheffield City Centre is host to a multitude of events, ranging from small farmers markets to international sporting events. Sheffield International Venues and Sheffield Theatres maintain the larger venues whilst several others are managed privately. Ponds Forge International Sports Centre, on the edge