Mine Index 3355 Riddle Hill Coal Company, Riddle Hill Mine

Mine Index Number: 3355

Company Name:	Riddle Hill Coal Company
Mine Name:	Riddle Hill Mine
Start Date:	1937	End Date:	1942
Type of Mine:	Underground
Total acres shown:	8
Acres after map date:	1	General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Main slope

Sangamon

16N 6W

32

SW SE NW

Air shaft

Sangamon

16N 6W

32

SW NE SW

Geology

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

Springfield

210

5.46

MRP

Production

Company

Mine Name

Date

Production (tons)

Farmingdale Coal Company (add)	Farmingdale (add)	1937-1937	1,033

Riddle Hill Coal Company (add)	Riddle Hill (add)	1938-1940	13,026

Robert Frew (add)	Frew (add)	1941-1941	7,835

Riddle Hill Coal Company (add)	Riddle Hill (add)	1942-1942	2,203

Riddle Hill Coal Company (add)	Riddle Hill (add)	1942-1942	2,200 Production after map date

Total Production: 26,297

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Microfilm, document 351219

7-1-1942

1:2400

1:3476

Not final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation.

Directory of Illinois Coal Mines (Sangamon County) - Mine names, mine index, ownership, years of operation.

Mine notes (Sangamon County) - Mine type, shaft location, seam, depth, thickness.

Microfilm map, document 351219, reel 03134, frame 413 - Slope & shaft locations, mine outline, mining method.