It was as a dark as a dungeon in the mines.  Each miner had a light.  When the mines first opened in the Drumheller Valley, the miners used a carbide lamp.  There was an open flame on their hats.  Later on, the miner’s used a battery lamp for light.  Every night the men had to return their battery packs to the lamp house.  Each battery pack had a number on it and each miner was responsible for his battery.