Mine Index 0126 O’Gara Coal Company, O’Gara No. 11 Mine

Mine Index Number: 0126

Accessible description: Mine Name and Data Summary

Company Name:	O’Gara Coal Company
Mine Name:	O’Gara No. 11 Mine
Start Date:	1906	End Date:	May 1924
Type of Mine:	Underground
Total acres shown:	543
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	Saline	8S 7E	20	SE SW SE

Shaft Type	County	Township-Range	Section	Part Section
Air shaft	Saline	8S 7E	28	SW SW SW

Geology

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

Seam	Depth (ft)	Thickness Min	Thickness max	Thickness Ave.	Mining Method
Springfield	398	4.33	6.17	5.5	MRP

Geological Problems Reported

A large fault with a displacement of 21 feet was encountered in the eastern part of the mine. A dike was encountered in the mine, but its location was not shown on the source map. The coal was very hilly, with grades of 4% very common and slopes in all directions. The hills caused many accidents, with at least 5 drivers killed in the mine on account of the steep grades. The coal contained pyrite lenses. Calcite and gypsum were present along cleats.

Production

Company	Mine Name	Date	Production (tons)

Company	Mine Name	Date	Production (tons)
O’Gara Coal Company (add)	O’Gara No. 11 (add)	1906-1924	2,667,487
Total Production: 2,667,487

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 352832	1-2-1923	1:2400	1:5697	Not final

Source Map	Map Date	Original Scale	Digitized Scale	Map Type
Federal Land Bank Report	1-12-1934	1:90510	1:90510	Secondary source

Annotated Bibliography (Data source - brief description of information)

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

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

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

Bibliography
Microfilm map, document 352832, reel 03140, frames 402-403 - Shaft locations, mine outline, mining method.

Bibliography
Federal Land Bank Report (Saline County) - Air shaft location.