HAYES AND 
KfcNNEDY. 
DETAILED SECTIONS. 
37 
appear on the surface. Several small veins or seams of sulphur, evi- 
dently deposited by escaping- gases, fill cavities in the sand} T clays, 
and considerable quantities of the same mineral occur in the form of 
crystals disseminated through the beds. This brown sandy material 
with its inclosed sulphur, locally known as "sour dirt," was at one 
time mined l>y the Damonia Mineral Company and shipped to Chicago 
for medicinal purposes. 
In a well 40 feet deep a short distance southeast of the hotel at 
Damon post-office the water is saline, while wells along the south- 
western edge of the mound near the old town of Damon afford fresh 
water. 
Drilling operations in this field have been carried on by the J. M. 
Guffey Petroleum Company and the Damon Mound Oil and Pipe Line 
Company. The J. M. Guffey Company has drilled three wells — Nos. 
1 and 2 and the Herndon well. Well No. 1 is located near the base 
of the mound on its northwestern side, while No. 2 is located near its 
northeastern end. The Herndon well has been drilled near its sum- 
mit toward the south side. The Damon Mound Company's well is 
near its southeastern base. The New York and Texas Oil Company, 
although making preparations, has not commenced operations. 
No petroleum in any quantity has as yet been found in Damon 
Mound. In the Herndon well the drill entered rock salt at 587 feet, 
and was still cutting through it at a depth of 1,160 feet, thus giving 
a known thickness of salt in this well of 573 feet. 
The logs of the wells drilled in the Damon Mound field are as 
follows : 
Log of Herndon well, Damon Mound. 
[Elevation, 140 feet.] 
Character of strata. 
Thickness. 
From — 
To— 
Feet. 
Feet. 
Feet. 
1 
Soil 
11 
35 

11 
11 
2 
Red clay 
46 
8 
Blue clay 
36 
46 
82 
4 
Sand 
14 
82 
96 
5 
Blue shale , 
46 
4 
19 
6 
96 
142 
146 
165 
142 
6 
Lime rock . 
146 
7 
Blue shale 
165 
8 
Shells and fine gravel 
171 
9 
Gypsum 
378 
171 
549 
10 
Sulphur and gypsum _ _ . 
30 
549 
579 
11 
Loose sand, very coarse '. 
8 
579 
587 
12 
Salt 
i 573 
587 
1,160 
