Mine Index 0856 Midland Electric Coal Corporation, Green Diamond Mine

Mine Index Number: 0856

Accessible description: Mine Name and Data Summary

Company Name:	Midland Electric Coal Corporation
Mine Name:	Green Diamond Mine
Start Date:	1948	End Date:	March 1966
Type of Mine:	Underground
Total acres shown:	2,429
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 slope	St. Clair	3S 6W	16	SW SW SW

Shaft Type	County	Township-Range	Section	Part Section
Air shaft	St. Clair	3S 6W	16	NW SW SW

Geology

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

Seam	Depth (ft)	Thickness Min	Thickness max	Thickness Ave.	Mining Method
Herrin	77-100			7.0	CRP

Geological Problems Reported

Rolls were present locally, and the contact between the coal and the roof shale was very irregular. The mine maps indicated bad top in several locations throughout the mine (central, south-central, northwest, and along the eastern perimeter).

Production

Company	Mine Name	Date	Production (tons)

Company	Mine Name	Date	Production (tons)
Mid-Continent Coal Corporation (add)	Green Diamond (add)	1948-1961	8,906,464

Company	Mine Name	Date	Production (tons)
Midland Electric Coal Company (add)	Green Diamond (add)	1962-1966	4,420,081

Company	Mine Name	Date	Production (tons)
Total Production: 13,326,545

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
State archive, PB_145_01	3-20-1966	1:2400	1:2400	Final

Annotated Bibliography (Data source - brief description of information)

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

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

Bibliography
Mine notes (St. Clair County) - Mine type, shaft location, seam, geologic problems.

Bibliography
State archive, PB_145_01 - Slope and shaft locations, mine outline, mining method, geologic problems.

Mine Notes

• 
  M0856 minenotes.pdf

Mine Images

Mine Map: PB_145_01

These files may not be true to scale and are not georgistered.	Map Type:	State Archive
	Map ID:	PB_145_01
	Company:	Midland Electric Coal Company
	Mine Name:	Green Diamond
	Caption:
	Map Date:	3-20-1966
	Map Status:	Final
	Image Credit:
	Note:
	More Info:	M0856 PB 145 01
	Full Res Download:These files are true to scale and most are georegistered for gis software. These files may be a very large (>1GB) download!	https://wikiimage.isgs.illinois.edu/ilmines/st clair/m0856 PB 145 01.zip