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 released to the public in spring 2014. The Riverside Exchange is a new, large business district in the north of the city centre and is home to organisations such as Irwin Mitchell and the UK Border Agency. The West End district of the city centre is home to many independent shops, bars and coffee shops - particularly catering for the large student population in the area. Devonshire Green, a small landscaped district park is host to the main stage of the annual Sheffield Tramlines Festival as well as outdoor cinema screenings throughout the summer. Sheffield City Centre Sheffield City Centre