106 
ECONOMIC GEOLOGY OF AMITY QUADRANGLE, PA. 
Distance between Pittsburg and Wdynesburg coals in Amity quadrangle, as shown by drill 
records — Continued. 
No. on 
PL I. 
Name of well. 
Location. 
Distance. 
Thickness 
of Waynes- 
burg coal. 
234 
273 
285 
Washington Floral Co 
N. T.Clark No. 2 
J.C. Martin No. 1 
Joseph Ross No. 1 
John C. Sargenl No. 2 
Thompson and Seaman Coal Co. 
No. 1. 
S. F. Scott No. 1 
South Strabane Township 
West Bethlehem Township 
do 
Feet. 
345 
334 
324 
315 
340 
340 
346 
Feet. 
3 
4 
4 
295 
do 
297 
do 
r 
299 
do 
30S 
West Pike Run Township 
Average 
332 
DISTIMIU'TION. 
The outcrop of the Waynesburg coal horizon is shown on the geologic 
map( PI. I, pocket) by the blue line at the contact of the Monongahela 
and Washington formations. The dash portion of the line indicates 
doubt whether the coal is workable and the dotted part shows places 
where it is probably too thin to be of value. It will be seen that over 
the northeastern quarter of the quadrangle the coal outcrops near the 
top of the hills. This is also true east of Zollarsville and south of 
Beallsville. Throughout these areas the bed seems to he uniformly 
present and has been opened at a great many country banks. 
From Nottingham and Somerset townships toward Chart iers Creek 
however, the seam decreases in importance. It outcrops over a con 
siderable area in the valley of Little Chartiers Creek north of Eighty 
four, and between Wylandville and the edge of the quadrangle several 
country banks have been opened at various times. The horizon fol- 
lows the east (Mil side of Chartiers Creek high up on the hills, but in that 
dist rict the coal is not known to be of value and may be absent in much 
of the area. In the Enterprise shaft, north of Washington, it is only 3 
inches thick, and in the Washington shaft only 8 inches. At Lone 
Pine, where it is brought up by the Amity anticline, it shows for a 
short distance, and here it has been extensively mined at several coun- 
try banks. With this exception the bed lies deep beneath the surface 
throughout the entire area south of Washington and Eightyfour and 
west of Odell and Zollarsville. The depth below creek level is about 
200 feet at Sunset and 100 to 150 feet between West Amity and Ten- 
mile village. 
The probable depth of the Waynesburg coal at any point in the 
quadrangle can be found by adding the corresponding interval (300 
to 350 feet) to the elevation of the Pittsburg coal as shown by the 
structure contours and then subtracting the sum from the surface ele- 
f 
