Mine Index 10106420 Hill-Ledford Mine, Hill Mine, Hill Ledford Mine

Mine Index Number: 10106420

ISGS ID:		MSHA ID:
MAS ID:		MRDS ID:	W062471
Company Name:
Mine/Site Name:	Hill Mine, Hill-Ledford Mine, Hill Ledford Mine
Active/Abandoned:	Abandoned
Start Date:	circa 1973	End Date:	circa1982
Commodity Type:	Non-Metallic
Commodity:	Fluorspar
Minerals Present:	Fluorite
Type of Mine:	Underground
District:	Fluorspar District	Subdistrict:	Cave-in-Rock Subdistrict
County:	Hardin
Section/Township/Range:	23(NWSWSE)-11S-9E
Latitude,Longitude:	37.52785,-88.1633599999998
Unit(s) Mined:	Lower Chesterian Series, Glen Dean Limestone, Renault Limestone
Feature(s) Mined:
MRDS Link:	https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10106420
Mindat link:

THE USBM CD-ROM HAS SECTION 25, BUT BAXTER AND OTHERS (1963) SHOWS THE LOCATION IN SECTION 23.

Ore body information: BLANKET Controls for ore emplacement: Selective Replacement Of Limestone Beds.

Discovered: 1948

BEDDED FLUORITE DEPOSITS FORM PRIMARILY FORM SELECTIVE REPLACEMENT OF LIMESTONE BEDS.

BAXTER AND OTHERS (1963) USES THE TERM HILL MINE ON THE MAP AND HILL-LEDFORD MINE IN THE TEXT.

U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM (MAS/MILS): U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95.

BAXTER, J.W., POTTER, E.P., AND DOYLE, F.L., 1963, AREAL GEOLOGY OF THE ILLINOIS FLUORSPAR DISTRICT, PART 1-- SALINE MINES, CAVE I ROCK, DEKOVEN, AND REPTON QUADRANGLES; ILLINOIS STATE GEOLOGICAL SURVEY CIRCULAR 342, 43 P.