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.
Netherthorpe, Sheffield within it. In 2009, the Opal 3 complex was built on Hoyle Street with accommodation for 992 students with leisure facilities and disabled access. Located within Opel 3 is the English Language Teaching Centre which is part of Sheffield University and helps students who are having problems with the English language. There are no GP practices within the immediate Netherthorpe area with the nearest ones being the Upperthorpe Medical Centre on Addy Street and the Sheffield City GP Health Centre on Broad Lane. There is one public house within the suburb: the White Hart on St Philips Road, a traditional