I dont know if your trying to be sarcastic, but Just short history...
WV Ohio and Va = Coal
UP MI and Mn = Iron Ore
OH IN IL = Steel
PA = Glass
Detroit = home of Ford Family, and families of Most US auto makers.
Detroit = Autos, auto parts, etc
1960 Detroit = BIG Companies + Big Labor = Control of entire region and Auto industry
1964 German and Japan Atuos make headway in market US auto indutry = blind and stupid (bad combination)
1968 Unions demand and get huge wage increases and lower producion quotas (Auto companies gutless)
1970s Japan makes Huge inroads US car makers produce junk cars from junk designs fall farther behind
1980s US still producing Junk Cars that will not sell, Labor still wants and get double digit increases to produce junk cars
1990s to today. Quality improves, and auto industry moves south to non union states. Overseas companies build plants in US away from overpriced Unions.
Future: Detroit will be ghost town (even more so than now).
Rest of michigan population requires US government to use Detroit as new Nuclear testing site. Figure whats left can not be as bad as what is there....