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 East (provincial electoral district) River East Branch to the border of East York around Sunrise Avenue. In 2007, the boundaries were altered slightly. In the northwest, the boundary was changed from the Don River to Leslie Street, and in the south they changed from the North York/East York border to Sunrise Avenue. This riding underwent significant changes during the 2012 electoral redistribution. It lost almost half of its territory to Don Valley North and gained a significant portion of Don Valley West. Don Valley East (provincial electoral district) Don Valley East is a provincial electoral district in Toronto, Ontario, Canada. It elects one member