Mine Index 5968 Peter D. Hoffman, Hoffman Mine

Mine Index Number: 5968

Company Name:	Peter D. Hoffman
Mine Name:	Hoffman Mine
Start Date:	1940	End Date:	1943
Type of Mine:	Underground
Total acres shown:	Less than 1
Production Indicated Acres:	2 acres were mined after the map date.	General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Drift

Peoria

9N 6E

22

NE SE NE

Air drift

Peoria

9N 6E

22

NE SE NE

Geology

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

Springfield

50

3.67

MRP

Production

Company

Mine Name

Date

Production (tons)

Henry Knaggs (add)	Knaggs (add)	1940-1940	806

Roy Knaggs (add)	Knaggs (add)	1941-1942	3,021

Peter D. Hoffman (add)	Hoffman (add)	1942-1943	11,580 Production after map date

Total Production: 15,407

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Microfilm, document 352263

1942

1:1200

1:1324

Not final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation, seam.

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

Mine notes (Peoria County) - Mine type, drift location, seam, depth, thickness.

Microfilm map, document 352263, reel 03138, frame 329 - Drift locations, mine outline, mining method.