• Largest gold mines in the US by employeesThe 25 biggest gold mines MSHA does not list as abandoned, ranked by reported headcount.
• Which states have the most gold mines?MSHA and USGS counts for every state, and what each source can and cannot tell you.
• Who owns the land under abandoned gold mines?Federal, state or private: BLM land status for every mapped gold mine, by state.
• Counties with the most historic gold minesThe 30 counties with the most USGS-recorded gold producers, with output classes.
• Largest historic gold mines in USGS recordsEvery site USGS puts in its large output class, by state.
• Surface vs underground gold mines in the USHow many working gold mines are open pit or placer and how many go underground, and who employs more people.
• Gold panning rules on public land: what the agencies sayBLM, Forest Service and Park Service rules for hand panning, with California, Alaska, Washington and North Carolina examples and every source linked.