on 1 April 1974, under the provisions of the Local Government Act 1972. All of West Teesdale lies within the parliamentary constituency of Bishop Auckland (County Durham). Uses in local culture Teesdale (district), County Durham Teesdale Allotments, Site of Special Scientific Interest in the Teesdale district Teesdale Mercury, newspaper Middleton-in-Teesdale Forest-in-Teesdale Teesdale School, Barnard Castle Teesdale Way, path following the river Tees Teesdale Iron Works, former name of defunct Head Wrightson large heavy industrial firm based at Thornaby-on-Tees Teesdale Business Park, on the site of the former works Teesdale Park, Thornaby FC Ground See also Cleveland, England Cleveland Hills List of Sites of Special Scientific Interest in Cleveland Teesside References External links Explore Teesdale Bowes Museum, Barnard Castle Middleton Plus North Pennines Area of Outstanding Natural Beauty (AONB) and European Geopark Yad Moss Ski Area River Tees Valleys of North Yorkshire Valleys of County Durham nl:Teesdale