The U.S. Extractive Industries Transparency Initiative (USEITI) has produced a series of case studies on extractive industries across the United States, focusing on coal, copper, gold, iron, natural gas, and oil.
The case study on iron mining in Marquette County, Michigan can be found here. The study includes:
- The geology and history of iron mining in Marquette County
- Production, revenue, and employment information
- Extensive data sources for interested readers
All of the USEITI case studies can be found here.