GRiswoLD.j RELATION TO STRUCTURE. 21 
Thence it swings to a more easterly direction and rapidly falls away 
before reaching Richmond. The corresponding syncline parallels this 
fold on the western side, but is interrupted by two cross anticlines, 
one near the line of the Pittsburg, Cincinnati, Chicago and St. Louis 
Railroad, the other very nearly agreeing with the location of the ridge 
road from East Springfield north toward Bergholtz. It thus forms a 
canoe-shaped basin whose lowest point is but a short distance east of 
the town of Jefferson, and part of another basin which extends almost 
due east and west, its center line being very near the location of the 
middle ridge. To the east of the main anticline the sand descends in 
terraces or steps to the eastern limit of the quadrangle, the crests 
of the terraces extending in lines parallel to the main anticlinal folds. 
Over this slope the intersection of the cross folds has the effect of 
obliterating the terrace for some distance and throwing its steep slope 
farther toward the east after passing the secondary fold. 
No long and steep slopes exist in the quadrangle. The slope is 
steepest on the face of the terraces, where it seldom amounts to 100 
feet to the mile. This lack of decided slope for a considerable distance 
is unfavorable to the probable accumulation of a large pool of oil, 
since no large area of oil-producing territory has been drained into 
a single continuous reservoir. 
Smith field pool. — The southern half of the quadrangle has been very 
generally prospected for oil. In the southeast corner, near the town 
of Smithfield, two producing wells (Nos. 189 and 190) have been found 
on the farm of Mr. Charles Galbraith. These two producers have 
been nearly encircled by test wells in hopes of extending this pool, but 
with unfavorable results. The two producing wells seem to be upon 
*a nearly level terrace and in what appears to be a most unlikely place 
for the accumulation of oil, from the indication of the contour map. 
To the southeast of the producing wells only one coal outcrop was 
leveled to. Well No. 193 found the sand 20 feet lower than would be 
expected from this outcrop. It is possible, therefore, that the sand 
descends faster in the southeast corner than is represented on the map. 
From this it would seem that the most favorable direction for pros- 
pecting is to the southeast of the producing wells. 
Bloomjield anticline. — Passing north from Smithfield over the 
Mclntyre creeks the sand is found to rise rapidly, until it culmi- 
nates in a nose jutting out at right angles to the direction of general 
folding, with its highest point in sec. 10, and extending southeasterly 
to east of the colored settlement near Mclntyre Creek. This would 
seem to indicate a favorable point for oil accumulation, and it is 
probable that if good sand be found on the sides of this secondary 
anticline it will be saturated with oil, the most probable location being 
in a northeasterly line through sec. 2, T. 9 N., R. 3, and sees. 32 and 
33, T. N., R. 2, with a favorable chance for small wells on the west 
