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 Airport the airport. However, the success of flights between Sheffield City and Amsterdam, and the subsequent expansion of regional airlines such as CityJet, Eastern Airways and Flybe, makes this debatable. It was also argued that Sheffield City Airport was unsuitable because the aircraft types used by the then-new low-cost airlines could not use the airport because of the length of its runway (which had proposed building a runway starter extension) – it was claimed that there was great demand for such services in the Sheffield area. However, the veracity of this argument has been thrown into doubt by the failure of