,~ U. S. GOVERNMENT PRINTING OFFICE: 1968 345-O5T/1~6326 
MINERALS YEARBOOK, 1967 
 
 
Table 1G.—Principal producers and processors of minerals and mineral
fuels—Continued 
Commodity and company 
Location of op 
eration(s) 
Remarks 
 
Nearest town 
County 
 
Stone, limestone—Continued Penn-Dixie Cement Corp_. Raid Quarries,
Inc        
Winterset         Burlington, Danville, Mediapolis. 
Madison      Des Moines 
Stationary plant. 
Do                
Argyle, Denmark, St. Francisvjlle, West Point. 
Lee           
Stationary plant. 
The River Products Co     
Coralville          
Johnson        
Do. 
Do                Do                
Columbus Junction~.. 
Keota, Washington - - 
Louisa         
Washington     
Underground mine. Young America quarry at Washington is under 
E. L Sargent Quarries, Inc__ Do                 
Osceola           Davis City, Decatur, Grand River. 
Clarke        Decatur 
ground. 
Stationary plant. 
Do                
Peru, Winterset     
Madison       
Stationary plant at 
Schildberg Construction 
Greenfield          
Adair 
Winterset. 
Co., Inc. 
Do                 
Do                 
Corning, Mount Etna 
Atlantic           
Adams Cass 
 
Do                
Greenfield          
Madison 
 
 Do                 
 
 Do                Weaver Construction Co 
Council Bluffs, Macedonia, Treynor. 
Thayer            
Lowden           
Pottawattamie - - 
 
Union 
Cedar 
 
Do                Do                 
Mason City, Sheffield 
Geneva            
Cerro Gordo Franklin 
 
Do                 
Do                
Do                 
Do                 
Webster City       
Alden, Iowa Falls.~ 
Maquoketa         
MeCausland        
Hamilton 
Hardin         
Jackson 
Scott 
Stationary plant at Alden. 
Do                 
Roland            
Story 
 
 1 All companies listed under "Clays and Shale" operated pits and processing
plants; products manufactured are shown under "Remarks" column. 
2 Portable plants were operated at the listed locations unless otherwise
specified. 
 Crushed limestone was produced at all listed locations.