bison bull Run Festival as part of the Fiesta San Fermin festival held from July 6 to 14 of every year. The task was not difficult to understand. Just let bison looks brutal to chase the turbines over 800 meters along the length of the target company. That can survive nearly half a ton of bison with a heavy blow , and beat you at any time. Since this tradition began in 1910 with the injured from the more than 300 people, and even death to 15 the cause of all deaths is to be bison horns with only 1 patient only were his. stabbed to death.