Mine Index Number: 0152
| Company Name:
|
Illinois Hi-Grade Coal Company
|
| Mine Name:
|
Keystone Mine
|
| Start Date:
|
1908
|
End Date:
|
December 1929
|
| Type of Mine:
|
Underground
|
| Total acres shown:
|
233
|
| Acres after map date:
|
5
|
General Area of mining acres shown:
|
|
|
|
Shaft, Slope, Drift or Tipple Location(s)
| Type
|
County
|
Township-Range
|
Section
|
Part Section
|
| Main shaft (10x18)
|
Williamson
|
8S 3E
|
35
|
SW SE NE
|
| Air shaft
|
Williamson
|
8S 3E
|
35
|
SW SE NE
|
Geology
| Herrin
|
242-250
|
6.17
|
7.0
|
6.3-6.5
|
MRP, RPPThe mining method over most of the mine is modified room & pillar. The room and pillar panel method is confined to the western and eastern edges of the mine.
|
Geological Problems Reported
The roof conditions were reported to be very poor. The shale above the coal was very thick and contained small slips and persistent joints; the roof tended to come down not long after mining so that timbering was required. The mine was wet, and the underclay heaved slightly
Production
| Company
|
Mine Name
|
Date
|
Production (tons)
|
|
|
|
|
|
| Total Production: 1,419,843
|
Production Notes
Coal Report production (if available)
Sources of Data
| State archive, IL_1631_01
|
10-15-1929
|
1:2400
|
1:2400
|
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 (Williamson County) - Mine names, mine index, ownership, years of operation.
|
| Mine notes (Williamson County) - Mine type, shaft location, seam, depth, thickness, geologic problems.
|
| State archive map, IL_1631_01 - Shaft locations, mine outline, mining method.
|
Mine Notes
Mine Images
Photographs
![[[:Keystone|Keystone]]](https://go.illinois.edu/ILMImages/williamson/thumbnails/m0152_IL_1631_01_geo_th.jpg)