W Withheld to avoid disclosing individual company confidential data; included
in "Total."304 
MINERALS YEARBOOK, 1967 
 
sources were the Ste. Genevieve limestone and Silurian and Devonian limestones
and dolomites. Although crushed and broken limestone was produced in several
areas of the State, half the production came from seven counties: Allen,
Clark, Crawford, Huntington, Lawrence, Monroe, and Putnam. Four new quarries,
for the production of crushed limestone, were opened in Allen, Huntington,
Putnam, and White Counties. 
 Calcareous marl, used for soil enrichment, was produced in nine counties
with the largest production reported from Lagrange, Marshall, and Noble Counties.

 Sandstone was quarried for building use in Lawrence, Martin, Monroe, and
Spencer Counties, and for rubble ' in Morgan County. In Pike County, sandstone
was removed from old coal mine spoilbanks and crushed for road use. General
Refractories Co. did not operate its quartz conglomerate quarry in Martin
County in 
1967. 
 
 
Table 1O.—Calcareous marl production 
 
Year 
Number of 
 
 
producers 
Short 
 
 
tons 
Value 
1963           
17 
59,265 
$36,635 
1964           
29 
86,493 
52,335 
1965           
21 
64,493 
40,260 
1966           
21 
61,532 
38,778 
1967           
18 
51,890 
33,553 
 Sulfur.—Byproduct sulfur was recovered from crude petroleum at the
Whiting refinery of American Oil Co. using the Mathieson-Fluor process. 
 
MINERAL FUELS 
 
 Coal (Bituminous) .—Coal was produced from 48 mines (11 underground
and 37 strip mines) in 14 counties. Most of the production (93 percent) came
from mines in five counties. Warrick County ranked first in output. 
 About 15.1 million tons of coal was mechanically cleaned at 11 plants. About
64 percent of the coal was moved by rail, 13 percent by truck, 10 percent
by water, and the remaining 13 percent by conveyor, tram, and other methods..
Nearly 65 percent of the coal mined was used for power generation by electric
utilities. More than 40 million tons of coal was consumed in Indiana, of
which nearly two-fifths came from Indiana mines. 
 The Peabody Coal Co. opened a new mine near Dugger that was designed to
produce about 3 million tons of coal annually. A preparation plant is under
construction and is scheduled for completion by January 1968. A walking dragline
with a bucket capacity of 145 cubic yards is being erected at the mine site.
Under a long-term contract, the mine, which produces coal from ' the Indiana
No. 6 and No. 7 seams, will supply fuel to the Wabash River Generating Station
of the Public Service Co. of Indiana, near Terre Haute. 
 
Table 11.—Coal (bituminous) production in 1967, by counties 
(Excludes mines producing less than 1,000 short tons) 
County 
Number of ml 
nes operated 
  
Production (short tons) 
 — ———— 
Value 
 
—— Underground 
Strip 
Underground Strip Total 
 
Clay                          Daviess                         
 
5 
1 
 1,194,735 1,194,735 
 W  W 
$4,906,525 
W 
Fountain                        
 
1 
 W  W 
W 
Gibson                
2 
1 
 343,915 204,035 547,950 
W 
Greene                         KnQx                 
1 
5 
  
 2,123,292 2,123,292 
 60,429 60,429 
8,334,257 
W 
Owen                           
 
1 
 W  W 
W 
Parke                         Pike,                
2 
1 
3 
  9,695 9,695 27,000 1,957,386 1,984,386 
57,844 
W 
Spencer                         
Sullivan               
Vermillion             
2 
1 
5 
3 
  
  95,880 95,880 1,099,810 2,707,808 3,807,618 1,624  1,624 
388,046 
15,146,897 
W 
Vigo                 Warrick               
 
Total            
1 
2 
1 
10 
 81,341 475,436 556,777 26,672 8,331,764 8,358,436 
W 
31,295,145 
 
11 
37 
1,640,791 17,130,905 18,771,696 
73,419,369