Mine Index 0535 Sahara Coal Company, Inc., Sahara No. 12 Mine

Mine Index Number: 0535

Company Name:	Sahara Coal Company, Inc.
Mine Name:	Sahara No. 12 Mine
Start Date:	1905	End Date:	March 1938
Type of Mine:	Underground
Total acres shown:	1,000
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

Saline

9S 6E

2

SE NW SW

Air shaft

Saline

9S 6E

2

SE NW SW

Geology

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

Springfield

415

5.33 (4.5-8.0)

MRP

Geological Problems Reported

Gas was abundant in places. Northwest-southeast trending faults were present in the eastern and western parts of the mine. The roof was good, except for two layers of “draw slate”. The first layer was taken down with the coal, and the second layer came down after a few months. The coal contained a pyrite layer near the top of the seam.

Production

Company

Mine Name

Date

Production (tons)

Harrisburg-Big Muddy Coal Company (add)	Illinois (add)	1905-1906	11,245

O’Gara Coal Company (add)	O’Gara No. 12 (add)	1906-1910	242,086

Harrisburg-Big Muddy Coal Company (add)	Harrisburg-Big Muddy No. 12 (add)	1910-1911	41,380

O’Gara Coal Company (add)	O’Gara No. 12 (add)	1911-1914	276,453

Harrisburg-Big Muddy Coal Company (add)	Harrisburg-Big Muddy No. 12 (add)	1914-1920	890,145

O’Gara Coal Company (add)	O’Gara No. 12 (add)	1920-1932	1,950,291

Sahara Coal Company, Inc. (add)	Sahara No. 12 (add)	1933-1938	1,310,616

Total Production: 4,722,216

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Microfilm, document 352792

3-11-1938

1:2400

1:5131

Final

Annotated Bibliography (Data source - brief description of information)

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

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

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

Microfilm map, document 352792, reel 03140, frames 327 and 328 - Shaft locations, mine outline, mining method, geologic problems.