 Hundreds of strikers surrounded the Calumet and Hecla mine shafts to prevent others from reporting to work.All Calumet and Hecla mines shut down during the Copper Country Strike of 1913–1914, although the workers were said to be sharply divided on the strike question.The union demanded an 8-hour day, a minimum wage of $3 per day, an end to use of the one-man pneumatic drill, and that the companies recognize it as the employees’ representative.