Mine Index Number: 0019
| Company Name:
|
Alden Coal Company
|
| Mine Name:
|
Alden No. 7 Mine
|
| Start Date:
|
1909
|
End Date:
|
1927
|
| Type of Mine:
|
Underground
|
| Total acres shown:
|
320
|
| Production Indicated Acres:
|
26
|
General Area of mining acres shown:
|
|
|
|
Shaft, Slope, Drift or Tipple Location(s)
| Type
|
County
|
Township-Range
|
Section
|
Part Section
|
| Main shaft
|
Mercer
|
15N 2W
|
27
|
NE SW SE
|
| Air shaft
|
Mercer
|
15N 2W
|
27
|
NW SE SE
|
| Air shaft
|
Mercer
|
15N 2W
|
26
|
SW NE NW
|
Geology
| Rock Island
|
70-95
|
|
|
4.0-5.0
|
MRP
|
Geological Problems Reported
In 1916, a great deal of water entered the mine from an abandoned adjacent mine, whose workings were not mapped (abandoned workings of “many, many years standing”). The influx of water idled Alden No. 7 Mine for 2 months. A lenticular black shale of variable thickness was present between the coal the limestone roof. A roof fall caused a fatality in 1915. The coal was irregular in thickness and had a high pyrite content as well as a considerable amount of calcite. There was more calcite in the bottom of the seam while the pyrite was throughout the bed. If the pyrite was gobbed so that air did not circulate freely over the pyrite masses, they began to burn. Horsebacks, faults, clay veins and rolls were present in the mine. One swag was noted where the coal thickness increased to 5 feet. Mine notes indicate pillars were pulled. The source map shows many areas of squeeze, especially in the eastern portion.
Production
| Company
|
Mine Name
|
Date
|
Production (tons)
|
|
|
|
|
|
| Total Production: 1,691,887
|
Production Notes
Coal Report production (if available)
Sources of Data
| State archive, IL_2355
|
6-1-1925
|
1:2400
|
1:2400
|
Not final
|
Annotated Bibliography (Data source - brief description of information)
| Coal Reports - Production, ownership, years of operation, seam, depth, thickness, mining method.
|
| Directory of Illinois Coal Mines (Mercer County) - Mine names, mine index, ownership, years of operation.
|
| Mine notes (Mercer County) - Mine type, shaft location, geologic problems.
|
| State Archive, IL_2355, courtesy of Robert Gibson, IDNR - Shaft locations, mine outline, mining method, geologic problems.
|
Mine Notes
Mine Images
Photographs
