494. GEOLOGY OF OHIO. 
north are Fifteen-Mile Creek and Morse Run, while those on the south, 
or south-east, are Archer’s Fork, Bear Run, and Cow Run. | 
We have seen that in Liberty township, as well as Salem, the strata | 
have a decided southern dip; but we find in this township a marked 
change, produced by the forces which elevated the Cow Run uplift. 
This uplift, which will be more particularly noticed hereafter, passes 
northward, gradually diminishing or flattening, but showing on Morse 
Run and its branches the well-marked characteristics of an anticlinal. 
The strata, followed from the north, are seen gradually to rise on the 
back of this anticlinal swell, at the same time dipping on either side of 
it to the east and west. 
On Fifteen-Mile Creek, at Burning Spring, the anticlinal feature is 
scarcely perceptible, but there is doubtless such an undulation as has 
caused subterranean fissures, from one of which the gas of the Burning 
Spring emanated. Such fissures also generally contain oil, and some 
good wells have been obtained in this region ; but so slight are the sur- 
face indications of the subterranean disturbance, that it is impossible to 
determine beforehand just where the greatest fissurings of the rocks, 
and, consequently, the more probable locations for oil wells, may be. 
KF. W. Minshall, Hsq., of Marietta, who to an unusually full and dis- 
criminating knowledge of the geological relations of the petroleum of 
Washington county adds large experience in the practical production of 
oil, informs me that he has not been able to find any well-marked anti- 
clinal in the region of Burning Spring, on Fifteen-Mile Creek. 
A very carefully conducted series of levelings with instruments more 
accurate than Locke’s level or the Aneroid barometer, might possibly 
show where the undulations are the sharpest, and where the oil would be 
most probably found, if at all. It is, however, doubtful whether any 
very valuable results would be secured. In a region of so very slightly 
disturbed condition, there is no authentication of oil territory so good as 
the wells themselves.. Further south, on Cow Run, the anticlinal, or 
“break,” as it is popularly termed, is very manifest, and intelligent oil 
men have long been guided by it. 
On Little Morse Run we find the traces of the Cow Run, uplift, for 
there is an apparent westward dip. This is seen on the land of D. Baker, 
section 27. Here the upper Salem, or Cumberland, seam of coal is found. 
A geological section here is as follows: : 
Ft. In 
1. Heavy sandrock (not measured). 
DNB wercla vue ee Me EME teens vterled ss ESE ANG ube ASM GS see SD iG 
BENT: (ays th eee en Eee Ae HIRED RNR Ore OU SWUUMCREaS AH Ania he seu acne cigars (0) AL 
4, Clay.... fee as SAAN AGI SCAU RUNS Da ccc cy Atala ON sealsina ave tal ees de Lt OME 
5. Coal . as ae ae 
6. (apalewal-ve, anole! syd Gee to che hea on mite) ‘Morse feat | 22 0 
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