The flames blaze from the open fire in the massive iron oven. Kilian Trenkle stokes the fire, places a sheet of metal in the centre of it and heats it until it softens and becomes malleable. It will take a few hours for Trenkle to forge a cowbell from the metal by hand. He is one of just a few people who can still do this craft. “Bells are extremely important on the mountain pastures. They tell the herdsmen where their herds are and whether the herds are complete.