sentences:  Various mining companies have operated the mine from the early 1990s using the open cut method and by reprocessing the tailings from past activities at the Big Bell gold processing plant.The last owners, Harmony Mining, have recently halted production and have sold the mine to Monarch Gold along with the Big Bell Mine and the Hill 50 Gold Mine at Mount Magnet.Monarch however was never able to pay off the mine and went into administration, returning Hill 50 to Harmony.