' Includes special sands and sand and gravel used for misceHaseens purposes.THE
MINERAL INDUSTRY OF OREGON 
669 
 
road construction and maintenance by governmental agencies; smaller amounts
were processed and used for lightweightconcrete aggregate, concrete admixtures
(pozzolan), and as an abrasive. All uses had gains. Road material (658,459
tons) was produced in Deschutes, Jefferson, Kiamath, and Lake Counties. Central
Oregon Pumice Co. and Graystone Corp. of Deschutes County produced pumice
which was processed and sold to concrete-products plants in the Northwestern
States, California, and Canada. Volcanic cinder from Baker County was mined
and crushed by Oregon Portland Cement Co., and volcanic ash from Gilliam
County was mined and processed by Kaiser Cement & Gypsum Corp. Both volcanic
materials were mined for their pozzolanic properties. Output of volcanic
material from these two operations was sharply curtailed because of completion
of the John Day and Green Peter Dams by the Army Corps of Engineers. 
 
 Sand and Gravel.—Sand and gravel output fell 44 percent from that
of 1966 owing to completion of the John Day road, railway, and town relocations
and completion of the earth-filled Foster Dam by the U.S. Army Corps of Engineers.
The commercial output increase of 5 percent helped 
to offset the 16.2-million-ton decline in Government-and-contractor production.
Under this classification, output for Federal agencies decreased from 20.2
million tons (1966) to 4.2 million tons; output for State agencies increased
from 3.1 million to 3.6 million tons; and output for counties decreased from
1.9 million tons to 1.3 million tons. 
 Production was reported from 35 of 36 counties; the exception was Morrow
County. Output exceeding 6 million tons was reported from Lane County; over
3 million tons from Multnomah County; and over 1 million tons each from Douglas
and Umatilla Counties. 
 The availability and quality of sand and gravel and stone within the Tualatin
Valley area were reported in a State study.5 
 
 Stone.—Stone output fell 60 percent below that of 1966. The large
decrease, as with sand and gravel, was due to reduced requirements for fill
material at the John Day dam project. Stone output for the Government-and-contractor
market decreased 68 percent from 29.6 million tons 
 
 Schlicker, H. G., and R. J. Deacon. The Engineering Geology of the Tualatin
Valley Region. Oregon Dept. GeoL and Miner. md., Bull. 60, 1967, 103 pp.

 
Table 6~—Sand and gravel sold or used by producers, by classes of operation
and uses 
(Thousand short tons and thousand dollars) 
Class of operation and use 
1966 
 — Quantity 
Value 
1967 
——_______ 
Quantity Value 
 
Commercial operations: 
 
 
 
 
Building                                     Railroad ballast           
                     
3,006 
145 
$3,923 
116 
3,636 
W 
$4,706 
W 
Road material                                 Fill                      
                   
5,617 
1,081 
7,309 
790 
5,931 
804 
7,178 
530 
Other '                                       Total__                   
            
 
Government-and-contractor operations: 
Building                                      
Roadmaterial                                  
Fill                                          
205 
314 
180 
186 
 
10,054 
12,452 
10,551 
12,600 
 
168 
7,140 
17,395 
245 
11,425 
10,456 
226 
5,744 
161 
336 
9,982 
116 
Other 1                                      Total_                     
                
 
All operations: 
Building                                      
Railroad ballast                                 
570 
408 
2,948 
2,216 
 
25,273 
22,534 
9,079 
12,650 
 
3,174 
145 
4,168 
116 
3,862 
W 
5,042 
W 
Road material                                  
12,757 
18,734 
11,675 
17,160 
Fill                                         Other'                     
                 
 
Grandtotal                                  
18,476 
775 
11,246 
722 
965 
3,128 
646 
2,402 
 
35,327 
34,986 
19,630 
25,250