Mine Index 0125   Eldorado Coal Corporation,   Eldorado Mine

Unlocated Mines In: Saline unlocated
County: Saline
Quadrangle: Eldorado
County Coal Data: Saline
Shown On Map: Yes
Unlocated: No

Mine Index Number: 0125

Company Name: Eldorado Coal Corporation
Mine Name: Eldorado Mine
Start Date: 1917 End Date: April 1953
Type of Mine: Underground
Total acres shown: 2,076
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 (11.33x17) Saline 8S 6E 24 NW SE NE
Air shaft (11.33x18) Saline 8S 6E 24 SE SW NE


Thickness (ft)
Seam Depth (ft) Min Max Ave Mining Method
Springfield 465 (456-465) 5.0 6.5 5.42-6.5 MRP

Geological Problems Reported

The mine outline shown on the accompanying map indicates the presence of many faults and dikes throughout the mine. Most trend northwest-southeast. The most bothersome dike cut diagonally through 13 and 24-T8S-R6E, and was 25 feet wide in the entry northwest of the hoist shaft, flanked by a total of 12 feet of naturally coked coal. At least two more dikes were noted, both in the northeastern part of the mine. One southwest-northeast trending fault, that had 35 feet of displacement, was noted south of the air shaft. The roof contained many slips, which caused many roof falls. One large area in the northern part of the mine (13-T8S-R6E and 18-T8S-R7E) was unmined because the coal was split. The source map indicates the upper split was 4.0 to 4.5 feet thick, with 1 foot or less of coal in the lower split below 2 feet of rock. Pyrite lenses were common in the coal. The floor had many slips, but no heaving was reported.


Company Mine Name Date Production (tons)
J. K. Dering Coal Company Dering No. 2 1917-1929 2,830,130
Franklin County Coal Company Franklin County No. 10 1930-1930 178,712
Rex Coal Company Rex No. 2 1931-1939 3,000,500
Dering Coal Company Dering No. 2 1940-1951 5,015,490
Eldorado Coal Corporation Eldorado 1952-1953 85,171
Total Production: 11,110,003

Production Notes

Coal Report production (if available)

Sources of Data

Source Map Map Date Original Scale Digitized Scale Map Type
Microfilm, document 352805 4-18-1953 1:2400 1:5959 Final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation.
Directory of Illinois Coal Mines (Saline County) - Mine names, mine index, ownership, years of operation.
Mine notes (Saline County) - Mine type, shaft location, seam, depth, thickness, geologic problems.
Microfilm map, document 352805, reel 03140, frames 352-357 - Shaft locations, mine outline, mining method, geologic problems.
Company map, ISGS map library, 4103.S32 d5.2-1 - Geologic problems (handwritten on map by G. H. Cady, 1919)

Mine Notes

Mine Images