Sand and 
Stone 
 
Sand and 
Stone 
 
gravel 
County 
Quan- Value 
tity 
Quan- 
tity 
 gravel 
County 
Value Quan- Value tity 
 
Quan- 
tity 
Value 
 
Adair                   
 
 
W 
W 
Johnson         
W 
W 
707 
W 
Adams                  Allamakee       
W 
W 
W 192 
W 
$231 
Jones          Keokuk 
41 
  
$53 
294 W 
$494 
W 
Appanoose       
Audubon        
Benton          
1 
90 W 
W 
$147 
W 
W 
 
W 
W 
  
W 
Kossuth         
Lee             
Linn            
508 W 
390 
328 W 441 
W 
1,677 
W 
2,0.82 
Blackhawk       
484 
W 
W 
W 
Louisa          
W 
W 
W 
W 
Boone          
Bremer          
Buchanan 
W 
W 
W W 
133 
235 
180 
277 
Lyon           
Madison 
Mahaska        
W 
  
W 
W 
 
W 
2,067 
W 
W W 
Buena Vista      
320 
217 
 
 
Marion          
237 
219 
500 
749 
Butler          
112 
110 
278 
319 
Marshall        
W 
W 
W 
W 
Calhoun         
67 
42 
 
 
Mills           
75 
100 
W 
W 
Carroll          
231 
184 
 
 
Mitchell         
112 
85 
256 
344 
Cass                    
 
 
W 
W 
Monona         
416 
W 
 
 
Cedar                   
Cerro Gordo      
Cherokee        
173 
428 
158 
383 
W 
1,818 
  
W 
1,719 
Montgomery 
Muscatine       
O'Brien         
516 
180 
W 115 
W W 
W W 
Chickasaw       
Clarke                   
Clay_           
Clayton         
Clinton          
20 
 
276 
W 
258 
15 
 
198 W 192 
W 
W 
  
324 
W 
W W 
 
W W 
Osceola          
Page           
Palo Alto        
Plymouth        
Pocahontas 
127 
W 
192 
247 
  
128 W 132 W 
W 
 
 
W 
W 
 
 
W 
Crawford        
 
 
Dallas          
 
 
Decatur                  
 
 
Delaware        
 
 
Des Moines       
 
 
Dickinson        
 
 
Dubuque        
 
 
Emmet          
 
 
Fayette         
 
 
Floyd          
 
 
Franklin         
 
 
Fremont                 
 
 
Greene          
 
 
Grundy         
 
 
Guthrie         
 
 
Hamilton        
 
 
Hancock        
 
 
Hardin          
 
 
Harrison         
 
 
Henry          
 
 
Howard         
 
 
Humboldt       
 
 
Ida            
 
 
Iowa           
 
 
Jackson         
 
 
Jasper          
Jefferson        
279 
456 
W 
174 
110 
91 
368 
78 
W 
182 
248 
W 
104 
198 
264 
471 
161 
W 
W 
147 
71 
W 
W 
W 
W 
195 
499 
W 
W 
W 
W 
331 
94 
W 
142 
227 
W 
78 W 
190 W 
W 
W 
W 
100 W 
W 
W 
W 
W 
W 
380 
W 
W 
  
419 
  
496 
W 
64 
W 
  
63 
  
W 
150 
W 
W 
120 
237 
865 
  
  
180 
W 
W 
W 
647 
W 
W 
 
W 
 
548 
W 
95 
W 
 
W 
 
W 
209 
W 
W 
130 
W 
1,030 
W 
W 
W 
Polk           
Pottawattamie    
Poweshiek       
Sac            
Scott           
Shelby          
Sioux           
Story           
Tama           
Taylor 
Union 
VanBuren       
Wapello         
Warren         
Washington 
Wayne 
Webster         
Winnebago       
Winneshiek       
Woodbury       
Worth          
Wright          
Undistributed 1~_ 
2,395 
23 
  
553 
129 
151 
689 
W 
45 
  
  
W 
W 
47 
   
  
285 
W 
76 
290 
59 
199 
3,890 
2,662 
25 
 - 
537 
136 
237 
607 
W 
44 
W 
W 
54 
147 
W 
W 
177 
50 
144 
6,641 
 W 
343 
 
1,970 
 
 
352 
 W 
 W 
 W 
360 
 W 
 
323 
 W 
353 
 
361 
 
 W 
 
10,616 
 W 
W 
 
2,816 
 
 
564 
 W 
 W 
 W 
 W 
 W 
 
 W 
 W 
 W 
 
 W 
 
 W 
 
25,479 
 
 
 
 
 
Total2     
17,734 
16,564 
26,133 
 — 37,912 
 for other purposes.320 
MINERALS YEARBOOK, 1967 
 
 
Table 7.—Production of sand and gravel and stone in 1967, by counties

(Thousand short tons and thousand dollars) 
W Withheld to avoid disclosing individual company confidential data; included
with "Undistributed". 
1 Includes production for which no county breakdown is available, and data
indicated by symbol W. 
2 Data may not add to totals shown because of independent rounding. 
 
 Stone.—Production of stone, consisting entirely of limestone, decreased
nearly 6 percent in quantity and over 5 percent in value from that of 1966.
The marked drop was attributed to substantial decreases in output for concrete
aggregate and roadstone, agricultural limestone, and riprap. 
 Limestone was produced from about 250 operations in 66 of Iowa's 99 counties.
Of these, six were underground operations. The five leading limestone-producing

counties listed in descending order of production quantities were Madison,
Scott, Cerro Gordo, Linn, and Humboldt. 
 Principal uses for crushed and broken limestone were for concrete aggregate
and roadstone, which accounted for 73 percent of the total. Cement manufacture
accounted for 14 percent, agricultural purposes 10 percent, and the remainder
was