USGS8; Stratigraphic Contacts and Named/Unnamed Units					
Formation/Group	Stratigraphic unit	Top (ft)	Depth (ft)	Thick (ft)	Elevation (ft)
Conemaugh Group.		0.00	507.30	507.30	1524.00
	Brush Creek coal bed horizon	424.08	424.08	0.00	1099.92
Allegheny Fm.		507.30	888.89	381.59	1016.70
	Upper Freeport coal bed horizon	507.30	507.30	0.00	1016.70
	Upper Kittanning coal bed horizon	623.19	623.19	0.00	900.81
	Middle Kittanning coal bed	659.25	660.91	1.66	864.75
	Lwr Kitt/No 6 Blk coal bed	714.71	715.10	0.39	809.29
	Little No 5 Block coal bed	853.92	854.32	0.40	670.08
	Stockton A coal bed	882.67	888.89	6.22	641.33
Kanawha Fm.		888.89	1433.78	544.89	635.11
	Stockton coal bed	915.58	922.09	6.51	608.42
	"Coalburg, upper split"	944.77	948.62	3.85	579.23
	"Coalburg, lower split"	956.56	960.76	4.20	567.44
	Winifrede coal bed	1016.43	1016.64	0.21	507.57
	Winifrede Shale	1037.20	1045.81	8.61	486.80
	Chilton Rider 	1045.81	1046.40	0.59	478.19
	Chilton coal bed	1063.91	1069.33	5.42	460.09
	Fireclay coal bed	1085.83	1092.66	6.83	438.17
	Unnamed coal bed	1097.81	1098.51	0.70	426.19
	Cedar Grove coal bed	1113.50	1114.25	0.75	410.50
	Dingus Shale	1163.04	1164.33	1.29	360.96
	Williamson coal bed	1164.33	1164.75	0.42	359.67
	Campbell Creek marine zone	1186.92	1205.57	18.65	337.08
	No.2 Gas Rider?	1214.48	1214.80	0.32	309.52
	No 2 Gas coal bed	1219.00	1229.06	10.06	305.00
	"No. 2Gas Leader?, parting= 5.35'"	1223.00	1229.06	6.06	301.00
	Marine zone ?	1247.90	1254.78	6.88	276.10
	Powellton coal bed	1263.31	1263.45	0.14	260.69
	Eagle coal bed	1300.84	1301.43	0.59	223.16
	Middle War Eagle coal bed horizon	1364.95	1364.95	0.00	159.05
New River Fm.		1433.78	1816.50	382.72	90.22
	Marine zone?	1527.00	1529.37	2.37	-3.00
	Sewell coal bed	1564.16	1565.60	1.44	-40.16
	"Unnamed coal bed, parting= 1.35'"	1594.34	1596.46	2.12	-70.34
	"Unnamed coal bed, parting= 1.69'"	1720.75	1722.95	2.20	-196.75
Mauch Chunk Fm.		1816.50	1861.00	44.50	-292.50