The Mercer County Fair is held the weekend of the first Saturday in August every year. The 2013 fair will be held August 2nd and 3rd. All exhibitors may enter items on Thursday evening August 1st. The Mercer County Fair began as the Bluestone Valley Fair at Spanishburg in the 1950's. The fair has undergone many changes over the years but still maintains the values of the communities of Mercer County.