Mine Index 0909   Sahara Coal Company, Inc.,   Sahara No. 20 Mine

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INTERPRETING A MINE SUMMARY SHEET
Unlocated Mines In: Saline unlocated
County: Saline
Quadrangle: Harco
Galatia
Carrier Mills
County Coal Data: Saline
Shown On Map: Yes
Unlocated: No
MSHA ID:

Mine Index Number: 0909

Company Name: Sahara Coal Company, Inc.
Mine Name: Sahara No. 20 Mine
Start Date: 1969 End Date: May 1983
Type of Mine: Underground
Total acres shown: 1,200
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 slope Saline 9S 5E 10 SE NW SW
Air shaft Saline 9S 5E 10 SW SW NW

Geology

Thickness (ft)
Seam Depth (ft) Min Max Ave Mining Method
Springfield 223 4.0 10.0 4.58-5.83 RPP, HERThe source map shows what appears to be some pillar removal in the south half of 9-T9S-R5E.

Geological Problems Reported

Faulting throughout the mine displaced the coal bed in many areas. The amount of displacement was not specified in the ISGS mine notes nor on the source map. In general, the roof was good, but the source map shows “bad top” that apparently halted southward expansion in the southwest quarter of 9-T9S-R5E. Bad top was also a problem in a small area in the NE SW 9-T9S-R5E. Some areas of the mine also displayed rolls.

Production

Company Mine Name Date Production (tons)
Sahara Coal Company, Inc. Sahara No. 20 1969-1983 5,586,580
Total Production: 5,586,580

Production Notes

Coal Report production (if available)

Sources of Data

Source Map Map Date Original Scale Digitized Scale Map Type
Company, 10-5-55 6-1983 1:1200 1:1200 Final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation, depth, thickness.
Directory of Illinois Coal Mines (Saline County) - Mine names, mine index, ownership, years of operation.
Mine notes (Saline County) - Mine type, slope location, seam, thickness, geologic problems.
Company map, ISGS Coal Section files, 10-5-55 - Shaft and slope locations, mine outline, mining method, geologic problems.

Mine Notes

Mine Images

[[:Sahara No. 20|Sahara No. 20]]These files may not be true to scale and are not georgistered. Map Type: Company
Map ID: 10-5-55
Company: Sahara Coal Company, Inc.
Mine Name: Sahara No. 20
Caption:
Map Date: 6-1983
Map Status: Final
Image Credit:
Note:
More Info: M0909.jpg
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/saline/m0909.zip

Photographs