BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



VOL. 24, PP. 275-282 JUNE 10, 1913 



NOTE ON A VEEY DEEP WELL NEAR MoDONALD, 

 PENNSYLVANIA 1 



BY I. C. WHITE 



(Read before the Society December 30, 1912) 



CONTENTS 



Page 



Location and depth of well 275 



Purpose of the well 276 



Method of construction 27(5 



Results of temperature determinations 270 



Record of the well 277 



Discussion of the section 278 



The gas and its control 27!) 



Facilities offered for scientific research 271) 



Postscript 280 



Location and Depth of Well 



To Pennsylvania belongs the honor of the deepest boring in America. 

 A well on the land of R. A. Geary, about 5 miles northwest from the 

 town of McDonald, near the line between Allegheny and Washington 

 counties, has now attained a depth of 6,052 feet. 2 This hole is being 

 drilled by "The People's Natural Gas Company," a former subsidiary of 

 the Standard Oil Company, of which Mr. John G. Pew, of Pittsburgh, 

 is president and L. F. Barger general superintendent, and it is through 

 their courtesy and that of Mr. J. B. Corrin, assistant superintendent of 

 the Mope Natural Gas Company, that the writer was given access to the 

 geologic data developed by the boring. Mr. Pew has chosen for the loca- 

 tion of this deep well test the summit of the Condor dome, a structural 

 feature in the rocks described in the Burgettstown-Carnegie Folio by 

 E3. W. Shaw and M. J. Munn, of the United States Geological Survey. 

 On this dome the Pittsburgh coal attains an elevation of 1,180 feel above 

 tide, the well mouth being at 1,050 feet, or L30 feet lower, thus beginning 



1 Manuscript received by the Secretary <>t* flic Society December 81, 1012. 

 -The well, on May 27, 1918, had readied a total depth of <;.'- M .»!i feet. 



I L>7'» I 



