Mine Index 0001 Spring Valley Coal Company, Spring Valley No. 5 Mine

Disclaimer INTERPRETING A MINE SUMMARY SHEET
	Unlocated Mines In:	Bureau unlocated
	County:	Bureau
	Quadrangle:	Spring Valley
	County Coal Data:	Bureau
	Shown On Map:	Yes
	Unlocated:	No
	MSHA ID:

For more information about Longwall Mining See: History of Longwall Coal Mining In Illinois

Mine Index Number: 0001


Company Name:	Spring Valley Coal Company
Mine Name:	Spring Valley No. 5 Mine
Start Date:	1900	End Date:	February 1923
Type of Mine:	Underground
Total acres shown:	717
Acres after map date:		General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Main shaft (16 x 12 ft)

Bureau

16N 11E

24

SW NE SW

Air shaft

Bureau

16N 11E

24

SW NE SW

Geology

For more information about Longwall Mining See: History of Longwall Coal Mining In Illinois

		Thickness (ft)
Seam	Depth (ft)	Min	Max	Ave	Mining Method

Colchester

421

2.33

4.0

3.25

LW (old longwall)

Geological Problems Reported

The immediate roof was generally a light gray shale soapstone with black shale above. The gray shale ranged up to 30 feet thick. The black shale varied from 3 to 15 feet thick. A layer of clay with coal stringers and pyrite bands was sometimes present, between and adhering to the coal and draw slate soapstone. This layer was not present when the immediate roof was black shale. Pyrite was common in streaks and bands. One band was persistent throughout the mine, about 3 inches from the top of the coal, and another persistent band was noted 6 inches above the floor. Some step faults were present. Breaks and bulges were noted in the floor, generally trending NW-SE, and the coal was thrown as much as 11 feet. However, there was no trouble with heaving. The underclay was generally between 6 and 8 inches thick, sometimes as much as 12 inches. A sandstone was present beneath the underclay, and some of the underclay was sandy.