40 
OIL FIELDS OF TEXAS-LOUISIANA COASTAL PLAIN. [bull.21£ 
Damon Mound well apparently is equivalent to the salt deposits of 
the Herndon well, and also the 30 feet of sulphur and gypsum. 
Log of Equitable Mining Company well at Kiser Height*, about :.' utiles west of 
Columbia. 
[Elevation, 34 feet.] 
Character of strata. 
Thickness. 
From— 
To— 
1 
White clav - - ..__.__.- 
Feet. 
2 
8 
15 
24^ 
10 
1 
23 
6 
15 
15 
14 
18 
4 
112 
1 
1 
18 
ry 
19 
6 
38 
1 
1 
20 
44 
76 
Feet. 

2 
10 
25 
25i 
50 
60 
61 
84 
90 
105 
120 
134 
152 
156 
268 
269 
270 
288 
295 
314 
320 
358 
359 
360 
380 
424 
500 
Feet. 
2 

Red clav . - - - .... 
10 
3 
Gray sand 
25 
4 
White clay 
25£ 
5 
6 
Quicksand 
Yellow clav - . - . 
50 
60 
7 
Quicksand 
61 
8 
Grav sand . 
84 
9 
Lignite with lo#s 
90 
10 
White (day _ 
105 
11 
Soapstone (clay) 
120 
12 
Blue shale 
134 
18 
Blue clay 
152 
14 
Rock and gas 
156 
15 
Blue sand and clay with thin streaks of rock, 
water in r< >ck 
268 
16 
17 
Rock . 
Sand ...__. 
269 
270 
18 
Blue clay 
288 
19 
Hard rock 
295 
20 
Blue clay . 
314 
21 
22 
Quicksand and gas .. _ . . _ 
Blue shale with some oil 
320 
358 
23 
Rock with black particles 
359 
24 
Oil sand 
360 
25 
Blue sand 
380 
26 
Sand . . _ 
424 
27 
do 
500 
28 
Rock with some oil 
This well has been drilled to about 600 feet, where the gas pressure 
was strong enough to blow the well out. This gas was accompanied 
with a large flow of water with a small quantity of oil. 
Along the San Bernard River, about 8 miles northwest of Damon 
Mound, there outcrops a soft grayish-white limestone which strongly 
resembles the Reynosa limestones of the West, and which may be 
traced to the upper exposed bed of limestone in Damon Mound. 
