Mine Index 0083 Moffat Coal Company, Moffat No. 1 Mine

Disclaimer INTERPRETING A MINE SUMMARY SHEET
	Unlocated Mines In:	Randolph unlocated
	County:	Randolph
	Quadrangle:	Steeleville
	County Coal Data:	Randolph
	Shown On Map:	Yes
	Unlocated:	No
	MSHA ID:

Mine Index Number: 0083


Company Name:	Moffat Coal Company
Mine Name:	Moffat No. 1 Mine
Start Date:	1902	End Date:	June 1940
Type of Mine:	Underground
Total acres shown:	1,549
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 (8 x 16 ft)

Randolph

5S 5W

8

SE SE NW

Air shaft

Randolph

5S 5W

8

SE SE NW

Geology

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

Herrin

130

4.5

6.5

5.25

RPP

Geological Problems Reported

The roof was composed of up to 3 feet of black shale with limestone above. The coal was thicker where the black shale was present. In some areas, up to 5 feet of shaley clod made up the roof. This white top clod came down more readily in north-south entries than in the east-west entries. At least one room had a roof of very calcareous black shale with the lower 12 inches containing large concretions. The coal usually varied both in thickness and quality with the character of the roof. The coal was generally 2 to 3 inches thinner under the black shale than under white top, and about 6 inches thinner under limestone than under black shale. The coal with limestone roof was also the dirtiest. Some small slips and rolls were found in parts of the mine. The coal contained shale bands, lenses of bone coal, and charcoal bands. The blue band was ½ to 1 inch of carbonaceous shale that was 6 to 9 inches above the floor. Calcite and pyrite were present on facings. The underclay, which averaged 4 feet thick, heaved badly when wet.