42 
RIO GRANDE COAL FIELDS OF TEXAS. 
BULL. 164. 
Prospect drill No. 2, by Cannel Coal Company, northeast of Carbon, about 3 miles south- 
east of Santo Tomas — Continued. 
Depth. 
Material. 
Thickness. 
Ft. in. Ft. in. 
320 0-322 
322 0-328 
328 0-340 
340 0-356 
356 0-400 
400 0-404 
404 0-418 
418 0-424 
424 0-435 
435 0-446 
446 0-447 
447 0-456 
456 0-461 
461 0-464 
464 0-476 
476 0-482 
482 0-485 
485 0-490 
490 0-500 
Sandstone 
Ft. in. 
2 
6 
12 
16 
44 
4 
14 
6 
11 
11 
1 
9 
5 
3 
12 
6 
3 
5 
10 
Shale 
Sandstone 
Shale „ 
Sandstone 
Shale 
Sandstone 
Slate 
Sandstone 
Shale 
Limestone 
Shale 
Sandstone 
Shale 
Sandstone . 
Shale 
Sandstone 
Shale 
Sandstone „> 
Mr. Davis states that the lower sandstones were not very coarse nor 
were they crystalline. The elevation at the surface, where this drill 
was sunk, is about 530 feet. 
Prospect drill No. 6, at Pilot ranch, 25 miles west of north from Santo Tomas, and 3 1-2 
miles from the Rio Grande. 
Depth. 
Material. 
Thickness. 
Ft. 

10 
12 
28 
44 
46 
68 
74 
74 
75 
in. Ft. 
0-10 
0-12 
0-28 
0-44 
0-46 
0-68 
0-74 
0-74 
8-75 
0-80 
Soil 
Gravel 
Yellow shale clay 
Blue shale clay . . 
Clayey sandstone 
Blue shale clay . . 
Blue shale clay . . 
Bony coal 
Brown shale clay 
Blue shale clay. . 
Ft. 
10 
2 
16 
16 
2 
22 
6 


5 
