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 Region Combined Authority and inappropriate". The order presented to parliament to create the authority referred to it as the Barnsley, Doncaster, Rotherham, and Sheffield Combined Authority. The authority has since adopted the corporate name "Sheffield City Region Combined Authority". The Sheffield City Region Local Enterprise Partnership was established in 2012. The local enterprise partnership covers the nine local authority areas. The Sheffield City Region Enterprise Zone includes sites spread over Barnsley, Doncaster, Rotherham, Sheffield and Markham Vale, Derbyshire. In August 2011 the government announced the creation of the zone, which included the existing Advanced Manufacturing Park in Rotherham. The zone was actually set