Location of operation(s)  RemarksCommodity and company Nearest town
County 
Grand Rapids 
  
Whittemore______________ 
National City 
Tawas City 
Alabaster 
Detroit_________________ 
Kent 
~do 
losco___________ ~do 
 
 
Wayne 
Negaunee Marquette - - 
Ishpesning do 
Mining, calcining, and fabricating. 
Mining (underground), calcining, and fabricating. 
Mining. 
Calcining and fabricating. 
Mining. 
Do. 
Calcining and fabricating. 
Negaunee 
Palmer_________________ 
Champion 
Ic.hpeming 
Ore improvement plant Negaunee do 
Pioneer pellet plant    do do 
Republic Republic do 
-. - do 
Dickinson Iron. 
- - do 
Do. 
Do. 
Table 17..—Principt~l producers and processors of metals, minerals,
and mineral fuels 1—~Continued 
 
 
 
Gypsum: 
Bestwall Gypsum Division, Georgia-Pacific Corp - 
Grand Rapids Gypsum Co 
Michigan Gypsum Co 
National Gypsum Co Do 
United States Gypsum Co 
Do 
Iron ore: 
Cleveland-Cliffs Iron Co.: 
Bunker Hill arid Maas 
Cliffs shaft__________________________ 
 
Eagle Mills pellet plant .. 
Empire~ 
Humboldt 
Mather 
 Tilden Ishpeming 
The Hanna Mining Co.: 
 Groveland Iron Mountain 
 Hiawatha Stambaugh 
 Homer Mineral Hills 
 Wauseca Iron River Inland Steel Co.: 
Bristol Crystal Falls Sherwood                             Iron River 
Jones & Laughlin Steel Corp.: 
 Tracy Negaunee 
North Range Mining Co.: 
 Champion Champion 
Pickands Mather & Co.: 
 Peterson Bessemer________________ Iron and steel: 
Ford Motor Co Dearborn 
McLouth Steel Corp Trenton 
National Steel Corp., Great Lakes Steel Division_.. Ecorse 
Lime: 
Detroit Lime Co River Rouge 
The Dow Chemical Co Ludington 
Industrial Chemicals Division., Allied Chemical Detroit_________________
Corp. 
do 
~~do 
Stockpile shipments only. Ore treated at the Ore Improvement Plant. Underground
mine closed in December. 
Pelletizes ore from the Republic mine. Open-pit mine, concentrator, and agglomerator.
t~i 
Do. 
Underground mine. Ore treated at the Ore Improvement ~ Plant and Pioneer
Pellet Plant. 
 
Pelletizes ore from the Mather mine. Open-pit mine, concentrator, and agglomerator.
Part 
 of the concentrates pelletized at the Eagle Mills ~ 
 Plant. 
Stockpile shipments only. 0 
 
Open-pit mine, concentrator, and agglomerator. 
Stockpile shipments only. 
Underground mine. Do. 
Marquette    Do. 
- - - do Underground mine closed in August. 
Gogebic Stockpile shipments only. 
Wayne Iron blast furnaces and open-hearth steel furnaces. 
- - - do Do. 
 do Do. 
- - - do Quicklime, one shaft and one rotary kiln. 
Mason Quicklime, three rotary kilns, one continuQus hydrator. 
Wayne Quicklime, pot kiln.