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 North its first Member of Parliament in the 1988 election. She was defeated by Liberal Sarkis Assadourian in the 1993 election. This riding was originally created in 1987, and was first used in the federal election of 1988. It was created from parts of Don Valley East and York—Scarborough ridings. In 1996, the riding was abolished through redistribution, and divided between Don Valley East and Willowdale ridings. This riding was re-created from parts of Willowdale and Don Valley East during the 2012 electoral redistribution. As per the 2016 Census, Don Valley North is one of the only three (3) City of