Mine Index 0911 Sahara Coal Company, Inc., Sahara No. 21 Mine

Mine Index Number: 0911

Company Name:	Sahara Coal Company, Inc.
Mine Name:	Sahara No. 21 Mine
Start Date:	1970	End Date:	1993
Type of Mine:	Underground
Total acres shown:	3,107
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 slope

Saline

9S 5E

17

NE SE SE

Air shaft

Saline

9S 5E

17

SE SE SE

Geology

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

Springfield

210-280

6.0

4.3-5.0

RPP,  LW,  HERLongwall mining was done in the northwest part of the mine. Pillars were pulled in several areas in the northern and southwestern parts of the mine.

Geological Problems Reported

The roof was good throughout. Falls occurred only along faulted or sheared roof areas. There were many discontinuous faults and fractures.

Production

Company

Mine Name

Date

Production (tons)

Sahara Coal Company, Inc. (add)	Sahara No. 21 (add)	1970-1993	12,487,858
Total Production: 12,487,858

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Company, 10-5-50

10-20-1994

1:12000

1:12000

Final

Annotated Bibliography (Data source - brief description of information)

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

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

Mine notes (Saline County) - Mine type, slope location, seam, thickness, geologic problems.

Company map, ISGS Coal Section files, 10-5-50 - Shaft and slope locations, mine outline, mining method.