Jasper Rock 
Duluth St. Louis Portland and masonry, dry process. 
Minneapolis              
Redwood Falls 
Springfield                
Goodhue 
St. Paul.. 
Hennepin       
Redwood       
Brown 
Goodhue       
Ramsey        
Duluth St. Louis 
St. Paul Ramsey 
Lightweight aggregate. 
Pit only, processing plant at Springfield. Brick. 
Brick, lightweight aggregate. 
Vitrified sewer pipe. 
Brick. 
Eveleth St. Louis Concentrator. 
LTJ 
 
 
 
1'i 
 
 
1~~ 
 
 
0 rJ) 
 
 
0 
' Ti 
 
 
 
 
 
02 
0 
' .3 
agglonierator. Production agglomerator. Production 
Crosby Crow Wing Underground mine. Permanently closed June 1967. 
Buhl St. Louis Development work only by Snyder Mining Co. 
Table 17.—Principal producers and processors of metals, minerals, and
mineral fuels 
Location of operation(s) 
Commodity and company —-————————
—————————— Remarks
Nearest town      County 
Abrasive stone—Grinding pebbles and tube-mill liners: 
Jasper Stone Co 
Cement: 
Universal Atlas Cement Division, United States Steel Corp. 
Clays and shale: 1 
North Central Lightweight Aggregate Co., Inc Ochs Brick & Tile Co 
 Do 
Red Wing Sewer Pipe Corp 
Twin City Brick Co 
Coke: 
American Steel & Wire Division, United States Steel Corp. 
Koppers Co. Inc 
Iron ore: 
Cleveland-Cliffs Iron Co.: 
 Canisteo 
 Hill-Trumbull 
 Holman-Cliffs 
 Sally 
Coons Pacific Co.: 
 Coons Pacific Plant 
The Hanna Mining Co.: 
 Rabbit Lake 
 Spring Valley 
 Butler Taconite Project 
 
 Harrison and Patrick Groups 
 Hunner 
 Mississippi Group 
 National Steel Pellet Project 
 
 Douglas Group 
 Morton 
 Pierce Group 
 South Agnew group Inland Steel Co.: 
 ArmourNo.2 
 Dean 
Jones & Laughlin Steel Corp.: 
 Hill Annex 
 Lind-Greenway 
 McKinley 
 Schley Group 
 
 
See footnotes at end of table. 
Coleraine Itasca 
Marble do 
Taconite do 
Coleraine do.. - - 
Cuyuna Village Crow Wing 
Spring Valley Fillmore 
Nashwauk Itasca 
~do do 
Coleraine do 
Keewatin do 
 Itasca and St. 
  Louis 
Chisholm St. Louis 
Hibbing do 
 do 
 do 
Calumet Itasca - - - 
Grand Rapids Itasca 
McKinley St. Louis 
Gilbert~~.    do 
Mine and concentrator. Do. 
Do. 
Ore treated at Canisteo Plant. 
Mine and concentrator. 
Stockpile shipments only. 
Mine, concentrator, and began March, 1967. 
Stockpile shipments only. Do. 
Do. 
Mine, concentrator, and began June, 1967. 
Stockpile shipments only. 
* Do. 
Mine and concentrator. 
Do. 
Mine and concentrators. Do. 
Development work only. Mine and concentrator.