244 MINERALS YEARBOOK, 1967 
 ' 75 
(I) 
 
0 
 
0 
~0 
 
C 
0 
 
 
 
E 
 
Ui 
 
 
-J 
 
> 
965 
 
 
total value of mineral production in Georgia. 
 
 
 
 
 
 
150 
 
 
 
 
 
125 
 
 
 
 
 
 
 
I 00 
 
 
 
 
 
 
 
75 
 
 
 
 
 
 
50 
 
 
 
 
 
 
25 
 
 
 
 
 
 
 
0 
' 945 
 
 
Figure 1.—Value of clays, and 
 
 The kaolin mining industry continued to 4pand with three more mines in 1967.
Als&, dimension granite production showed a steady increase in value.
Iron ore production decreased significantly; six mines closed in 1967. 
 
 Legislation and Government Programs. 
—The Georgia Department of Mines, Mining and Geology continued its
South 
Georgia Minerals Program. Exploration for phosphate, heavy minerals, and
industrial and high—alumina clays was conducted. 
 Of the total Interstate highway mileage in the State, 234.8 miles was under
construction in 1967, 521.2 miles was open to traffic, and 350.5 miles or
32 percent was yet to be built. This construction program was a significant
consumer of nonmetallic minerals produced in Georgia.