Mance: Quarry Industry of Southern Indiana 27 



The stone of this quarry is a very fine grade of very white, chalky 

 stone. The stripping in the quarry is quite heavy, but the work- 

 able stone is comparatively thick and easily quarried. The 

 seams in this quarry, altho very wide and much weathered, are 

 few and so far apart that if the floors are worked parallel with 

 them they in no way interfere with the workings. The situation 

 of the quarry on the hillside above the level of the neighboring 

 stream bed gives a large quantity of buff stone. In fact, there 

 is practically no blue stone at all. In a few places only in the 

 very bed of the quarry there are small quantities of blue stone. 

 The floors along the edge of the hill are in some cases broken up 

 by horizontal cracks which cause the blocks to split in what 

 might be termed very irregular bedding planes. This peculiarity 

 disappears as the floors are worked back into the hill, and is 

 probably caused by a slight upheaval or by a tendency of the 

 underlying stone to weather out and give a downward motion 

 to the overlying beds, such as to have caused the breaks. The 

 position and direction of the cracks would indicate that the last- 

 mentioned phenomenon has occurred. A similar effect of the 

 position of the stone on a hillside has been noticed in the Hoadley 

 quarry at Stinesville, where a line of broken stone crosses the 

 opening. In this line the stone is so broken that no workable 

 pieces could be obtained. This zone of stress may be due to 

 either of the above causes. 



The Perry Stone Company had the misfortune to lose their 

 entire quarry power plant by fire early in July, 1914, and the 

 owners are now considering the installation of complete electrical 

 equipment in the quarry. 



Hunter Valley. Hunter Valley is a low, irregular valle}^ 

 located about 1^ miles northwest of Bloomington, and it is 

 about 2 miles long by 1 mile wide at its greatest width. Its 

 longest axis extends nearly north and south, and several small 

 ravines entering the valley from the east and west sides cut the 

 valley into a number of ridges and depressions extending, in 

 general, east and west. The Oolitic limestone outcrops in all 

 the lower portions of the valley, but on the ridges there is a very 

 thin layer of the Mitchell limestone overlying it. Where it is 

 exposed it is deeply seamed and weathered, and in quarrying 

 there is a large amount of waste stone to be stripped off before 

 the level quarry floor can be opened. Thruout the valley the 

 amount of stripping is light and the grade of stone quarried is 



