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

Mine Index Number: 0126

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

Main shaft

Saline

8S 7E

20

SE SW SE

Air shaft

Saline

8S 7E

28

SW SW SW

Geology

		Thickness (ft)
Seam	Depth (ft)	Min	Max	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)

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

Microfilm, document 352832

1-2-1923

1:2400

1:5697

Not final

Federal Land Bank Report

1-12-1934

1:90510

1:90510

Secondary source

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation.

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 352832, reel 03140, frames 402-403 - Shaft locations, mine outline, mining method.

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