Mance: Quarry Industry of Southern Indiana 47 



old Buff Ridge quarry, opened in 1891. At present the work is 

 being carried on on 5 separate floors at different parts of the 

 quarry. The workable stone is in most parts of the quarry 

 about 50 feet thick, but this thickness varies with the location 

 and amount of stripping that is taken off. The number of seams 

 present is small and the new floors which are being opened under 

 a thicker cover of the Mitchell limestone are quite free from any 

 open mud seams. The bulk of the stone quarried is buff, but the 



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Waste piles in the P. M. and B. quarry of the Indiana Quarries Company at 

 Buff Ridge. The amount of waste stone taken out in tliis quarry is probably greater 

 than in any other quarry in the belt. Some of the waste is at present utilized in the 

 manufacture of lime. 



amount of blue increases as the openings are carried to the west 

 aiud north. The grain of the stone is uniformly fine, altho there 

 are places where a more crystalline and coarser stone appears. 

 The stripping varies in different parts of the quarry but on the 

 north side of the old workings where a very extensive new floor 

 is being opened the covering consists of about 8 feet of clayey 

 loam and 25 feet of Mitchell limestone. The top of the Oolite 

 under this thick cover is very even and the channelers can operate 



