Blizzard in Matewan WV (USA) Matewan in Mingo County is a place of hystorical significance for coal miners and Unions. It is where the Matewan Massacre took place in 1920. A shootout in the town of Matewan, West Virginia in Mingo County on May 19, 1920 between local miners and the Baldwin-Felts Detective Agency, the thugs hired by the coal company.