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.
Culture of Sheffield is a Red Brick university. It owns the Arts Tower, which was the tallest building in Sheffield from its construction in 1965 up until 2010, when it was surpassed by St Pauls Tower. It is still, however, the tallest university building in the UK. Sheffield Hallam University is also highly respected among New Universities. It is based on a large campus in the city centre. Both universities have extensive links with local industry and the English Institute for Sport. Culture of Sheffield Sheffield has a growing cultural reputation. 7.2% of Sheffield's working population are employed in the creative industries, well