Mine Index 0291 Hillsboro Mining Company, Hillsboro Mine

Mine Index Number: 0291

Accessible description: Mine Name and Data Summary

Company Name:	Hillsboro Mining Company
Mine Name:	Hillsboro Mine
Start Date:	1888	End Date:	May 1941
Type of Mine:	Underground
Total acres shown:	1,862
Production Indicated Acres:	4	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	Montgomery	8N 4W	12	NW NW NE

Shaft Type	County	Township-Range	Section	Part Section
Air shaft	Montgomery	8N 4W	12	SW NW NE

Geology

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

Seam	Depth (ft)	Thickness Min	Thickness max	Thickness Ave.	Mining Method
Herrin	400-475	6.5	8.0	6.58-7.2	MRP

Geological Problems Reported

The Coal Report indicated that gas (black damp) was a problem in some parts of the mine (1909). Improved ventilation took care of the problem. A large fault was found in the northwest workings. The shale roof did not hold very well, and generally 10 inches of top coal was left to support the roof.

Production

Company	Mine Name	Date	Production (tons)

Company	Mine Name	Date	Production (tons)
Hillsboro Coal Company (add)	Hillsboro (add)	1888-1937	10,168,628

Company	Mine Name	Date	Production (tons)
Hillsboro Mining Company (add)	Hillsboro (add)	1937-1941	164,059

Company	Mine Name	Date	Production (tons)
Hillsboro Mining Company (add)	Hillsboro (add)	1940-1941	22,134

Company	Mine Name	Date	Production (tons)
Total Production: 10,354,821

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
Microfilm, document 352589	4-1-1940	1:2400	1:4800	Not final

Source Map	Map Date	Original Scale	Digitized Scale	Map Type
State archive, MSHA_441	6-1-1938	1:2400	1:2400	Not final

Annotated Bibliography (Data source - brief description of information)

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

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

Bibliography
Mine notes (Montgomery County) - Mine type, shaft locations, seam, depth, thickness, geologic problems.

Bibliography
Microfilm map, document 352589, reel 03139, frames 403-406 - Shaft locations, mine outline, mining method.

Bibliography
State archive, MSHA_441, courtesy of Robert Gibson, IDNR - Mine outline (southeastern, west central portion).