Tooele County Mining Districts 2012

The Utah Mining Districts database contains major metal production data for over 180 mining districts (updated through 2012). The data also includes the best estimates for the age of mineralization in millions of years, most important commodities produced, total value of mineral production (if known), year the district was organized, and years in which metals were produced.犹他采矿区数据库汇集了超过180个采矿区的主要金属生产数据（更新至2012年）。该数据还包括矿物化年龄的最佳估计值（以百万年为单位）、最重要的产出商品、矿物生产的总价值（若已知）、采矿区成立年份以及金属生产的年份。