Lower Don Valley Lower Don Valley The Lower Don Valley, or historically the East End of Sheffield, is the mainly industrial north-east quarter of Sheffield, England. Located on the River Don, it encompasses the areas of Attercliffe, Brightside, Darnall, Tinsley and Wincobank. The area became the heart of Sheffield's steel industry during the 19th and 20th century. However it went into decline during the 1970s and 1980s as the nature of steel manufacture changed from large industrial sites with large scale employment to more streamlined and automated manufacture. As a result, large areas were derelict by the end of the 1980s despite the
Don Valley (electoral district) west along Bond Avenue, north along Leslie Street, west along York Mills Road, north along Bayview Avenue, southwest along Highway 401, south along Yonge Street, east along Merton Street, south along Bayview Avenue, east and south along the northern limit of the Township of East York, and east along the Don River to Donlands Avenue. The electoral district was abolished in 1976 when it was redistributed between Don Valley West, Rosedale and York East ridings. Don Valley (electoral district) Don Valley was a federal electoral district of the House of Commons of Canada from 1968 to 1979. It was located