44 GEOLOGICAL SUBVEY OF ALABAMA. 



mouth of Armstrong's Creek in S. 31, T. 13, R 2 East. It 

 is there known as the Washington led. Coal has been taken 

 out here in considerable quantities in former years, though 

 the works are now filled up. 



The coal here, as in all other places on this seam, is in 

 two benches, with a clay parting between. Coal of very fine 

 quality about 20 inches thick. Not thick enough for min- 

 ing, here, or probably anywhere else in the southwestern 

 part of this field. 



Immediately above this seam at the Washington beds is 

 the third conglomerate. Generally it is an irony conglomer- 

 ate holding rather large-sized pebbles, and very firmly ce- 

 mented together with carbonate of iron. It may not be co- 

 extensive with the field ; was only seen at, and south of, the 

 Washington bed, and on the river bluff at this horizon, in 

 S. 21, T. 13, E. 2 East. 



No 10, of the General Section, is about 55 feet above the 

 Murray Seam, and is locally known as the "Ivy Hole" seam, 

 so called from the large amount of ivy growing near to the 

 deep hole in the river where this seam was first observed. 



At the place where it was first opened near the southeast 

 corner of the N. E. of N. W. of S. *22, T. 13, E. 2 East, it 

 was only 13 J inches thick, and so far as traced on the river 

 bluffs to the southwest seemed about to hold its own. But 

 to the northeast it thickens a little. In the S. E. of S. E. of 

 S. 15, T. 13, E. 2 E., it was drilled through at the edge of the 

 water and found to be 19^ inches thick. Should this in- 

 crease continue a mile farther northeast it would become a 

 workable seam. 



From 55 to 60 feet higher up strata, flaggy sandrock is 

 the Jourdan Seam, No. 11 of the General Section. It is 

 called the "Jourdan Seam" because it was first opened on 

 Jourdan Creek in the N. W. J of S. 14, T. 13 of E. 2 East. 

 This was a very promising outcrop of coal, capped b}^ a heavy 

 ledge of sand rock, and lying above water level. 



Its outcrop showed the following 



