Mine Index 0863 Old Ben Coal Corporation, Old Ben No. 21 Mine

Mine Index Number: 0863

Accessible description: Mine Name and Data Summary

Company Name:	Old Ben Coal Corporation
Mine Name:	Old Ben No. 21 Mine
Start Date:	1960	End Date:	October 26, 1991
Type of Mine:	Underground
Total acres shown:	8,696
Acres after map date:		General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Shaft Type	County	Township-Range	Section	Part Section
Main shaft	Franklin	5S 2E	8	NE NE NE

Shaft Type	County	Township-Range	Section	Part Section
Air shaft	Franklin	5S 2E	8	NW NE NE

Shaft Type	County	Township-Range	Section	Part Section
D and E shafts	Franklin	5S 2E	17	NW SW NE

Shaft Type	County	Township-Range	Section	Part Section
F and G shafts	Franklin	5S 1E	14	SW NE SE

Geology

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

Seam	Depth (ft)	Thickness Min	Thickness max	Thickness Ave.	Mining Method
Herrin	656-660			5.8-8.42	HER, LW, RPP,RP

Geological Problems Reported

Several types of structural features are common here: large, high-angle faults apparently of tectonic origin (Rend Lake Fault System) with 1 to 6 feet of displacement, steep high-angle fractures or slips in coal or roof (tectonic origin), minor slips in roof shale (soft-sediment compaction features), and “X” pattern faults (usually two faults intersecting at the top of the coal). The roof was medium gray shale, finely silty and micaceous, finely laminated, firm, with fine sideritic laminations and nodules. The northwestern corner of the property had split coal, where the blue band thickened from its normal 2 to 3 inches up to 24 inches. (This area is adjacent to the Walshville channel.) At least one large roll was present, plus a series of small rolls. About 12 inches of top coal was left to support the roof throughout the mine.

Production

Company	Mine Name	Date	Production (tons)

Company	Mine Name	Date	Production (tons)
Old Ben Coal Corporation (add)	Old Ben No. 21 (add)	1960-1991	53,797,836

Company	Mine Name	Date	Production (tons)
Total Production: 53,797,836

Production Notes

Coal Report production (if available)

Sources of Data

Source Map	Map Date	Original Scale	Digitized Scale	Map Type

Source Map	Map Date	Original Scale	Digitized Scale	Map Type
Company map	12-1993	1:12000	1:12000	Final

Source Map	Map Date	Original Scale	Digitized Scale	Map Type
Company map	12-31-1996	1:4800	1:4800	Final

Annotated Bibliography (Data source - brief description of information)

Bibliography
Coal Reports - Production, ownership, years of operation, depth, thickness.

Bibliography
Directory of Illinois Coal Mines (Franklin County) - Mine names, mine index, ownership, years of operation.

Bibliography
Mine notes (Franklin County) - Mine type, shaft location, seam, thickness, geologic problems.

Bibliography
Company map, ISGS Coal Section files - Mine outline, mining method.

Bibliography
Company map, ISGS Coal Section files (digital) - Shaft locations.