Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Krasno-Oskol Reservoir (Ukrainian: Червоноскільське водосховище; Russian: Краснооскольское водохранилище, sometimes translated as Chervonooskil -, Krasnooskol'skoye - or Krasno-Oskol'skoe -) is an artificial lake on Oskol River in Kharkiv Oblast, Ukraine.The reservoir was opened in year 1958. Its area is 130 km², maximal length 125 km, maximal width 4 km, average depth is 4 m and about the volume 474 km³. The purpose of the reservoir is to regulate flooding, serve as source for electricity and to help fishing industry.