Coppertown Mining Museum The mine closed in 1986 due to a tax dispute with the city, which foreclosed for again taxes in 1989 and auctioned the property to Richard and Robert Hauck for $750,000. The California State Mining and Mineral Museum might be open Thursday via Sunday and closed https://raymond12unf.laowaiblog.com/6739088/unlocking-earth-s-treasures-with-mineral-exploration