Gold Mining in Humboldt and Lander Counties, Nevada Read more about Gold Mining in Humboldt and Lander Counties, Nevada
Oil Production in the North Slope Borough, Alaska Read more about Oil Production in the North Slope Borough, Alaska
Coal Mining in Boone, Logan, and Mingo Counties, West Virginia Read more about Coal Mining in Boone, Logan, and Mingo Counties, West Virginia
Natural Gas Production in DeSoto Parish, Louisiana Read more about Natural Gas Production in DeSoto Parish, Louisiana
Iron Mining in St. Louis County, Minnesota Read more about Iron Mining in St. Louis County, Minnesota