River Dearne is a river in South Yorkshire , England . It flows roughly east for more than , from its source just inside West Yorkshire , through Denby Dale , Clayton West , Darton , Barnsley , Darfield , Wath upon Dearne , Bolton on Dearne , Adwick upon Dearne and Mexborough to its confluence with the River Don at Denaby Main . Its main tributary is the River Dove , which joins it at Darfield . The river was one of those affected by the 2007 United Kingdom floods
2007 United Kingdom floods
2007 United Kingdom floods
River Dearne