WEST VIRGINIA GEOLOGICAL SURVEY. 177 



oil and gas have been found in many of the sands ranging be- 

 tween the Little Dunkard and the Sixth. The others above 

 and below these horizons are not known to have been pro- 

 ductive. 



For the relative distances of the principal producing sands 

 of the two counties below the Pittsburgh Coal, the reader is 

 referred to the table of intervals published in Chapter III, page 

 36. 



DESCRIPTION OF PRODUCTIVE SANDS. 



Little Dunkard Sand. The Little Dunkard Sand is not 

 generally productive, but made gas in the O. Cheuvront No. 

 4087 (243) well in Freemans Creek District, Lewis. The sand 

 occurs 350 to 400 feet below the Pittsburgh Coal. 



Big Dunkard Sand The Big Dunkard Sand, which in 

 some of the western counties yields considerable oil, is not 

 generally productive in Lewis and Gilmer. In Dekalb Dis- 

 trict, Gilmer, it showed oil and gas in the Nancy Nicholas 

 No. 1 (668) and oil in the W. H. Ayers No. 1 (670) wells. 

 The sand ranges in thickness from 10 to 50 feet, and is usually 

 found 450 to 500 feet below the Pittsburgh Coal. 



Burning Springs Sand. The Burning Springs Sand, oc- 

 curring about 650 feet below the Pittsburgh Coal, is not gen- 

 erally productive, but made gas in the A. B. Ayers No. 3130 

 (667) well, in Dekalb District, Gilmer. 



Gas Sand. The name "Gas Sand" has been applied by 

 drillers to various members of the Allegheny and Pottsville 

 beds, but the highest formation that has been given this title 

 is the sand that correlates with the Lower Freeport Sandstone 

 of the Allegheny. It is usually 20 to 50 feet thick, coming 

 about 700 feet below the Pittsburgh Coal. In Lewis and Gil- 

 mer, it is not generally productive, but it showed gas in the 

 Perry White No. 497 (236), and B. L. Kraus No. 242 (353) 

 in Freemans Creek District, and Waters Heirs No. 4 (585) in 

 Collins Settlement District, Lewis. 



Second Cow Run Sand. The Second Cow Run Sand, 

 named from Cow Run, in Ohio, where it produces oil, and 

 often called the First Salt or sometimes the Gas Sand, is the 

 highest formation in the Pottsville Series, belonging 750 to 



