Daily Archives: 4-May-2019

US Iron and Aluminum Mining During WW2

My vacation/retirement cabin is in the iron mining region of Minnesota. The rock throughout the area shows the reddish hue of iron. I recently heard some old timers talking about how the intensity of the mining operations during WW2 took the last of the high-grade iron ore (hematite) and left only low-grade ore (taconite). This comment made me curious about mining during WW2. Continue reading

Posted in History Through Spreadsheets | 2 Comments