Mine Index 0994 Lee Coal Company, Calefy Mine

Mine Index Number: 0994

Company Name:	Lee Coal Company
Mine Name:	Calefy Mine
Start Date:	1979	End Date:	October 1981
Type of Mine:	Underground
Total acres shown:	16
Acres after map date:	32	General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Main drift (haulage)

Vermilion

19N 12W

14

NW NE NE

Drift (belt haulage)

Vermilion

19N 12W

14

NW NE NE

Air drift (return)

Vermilion

19N 12W

14

NW NE NE

Air drift (intake)

Vermilion

19N 12W

14

NW NE NE

Geology

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

Herrin

25–160

2.0

10.0

6.0

CRP

Geological Problems Reported

“The old works above this underground mine are full of water, presenting a worry since only about 20 feet of strata separate the No. 6 and No. 7 Coals.” Three roof falls of 7 to 10 feet of shale above the coal were noted. In places the topmost layers of coal were fractured and mixed with shale or clay in what could be called a “white top” disturbance. Elsewhere the contact of coal to shale gave the appearance of being an erosional surface. Clay dikes were present between the layers of black shale roof. Concretions were present in the mid-to-upper part of the seam in some places. A major problem in this mine was the variability in thickness as well as quality. The coal was generally 7 to 8 feet thick, but pinched down to as little as 2 feet. Thin coal was due to rolls in some instances, erosion of the upper portion of the coal in some instances, and in other cases the thin coal was depositional, topographic highs where less peat accumulated. This caused the mine output to be high in ash content as the continuous miner took in portions of the roof and floor where the coal thinned. “Sulfur is said to vary from 2.2% to 4.1% and Btus from 11,200 to 11,800 within the small area already mined.”

Production

Company

Mine Name

Date

Production (tons)

Coal Producers, Inc. (add)	Calefy (add)	1979-1980	99,025

Coal Producers, Inc. (add)	Calefy (add)	1980-1980	43,765 Production after map date

Lee Coal Company (add)	Calefy (add)	1981-1981	126,668 Production after map date

Total Production: 269,458

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Company map, 10-6-8

3-13-1980

1:1200

1:1200

Not final

Company map, 10-3-17

4-15-1980

1:1200

1:1200

Not final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation, depth, mining method.

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

Mine notes (Vermilion County) - Mine type, drift location, seam, depth, thickness, geologic problems.

Company maps, Coal Section files, 10-6-8 and 10-3-17 - Drift locations, mine outline, mining method.