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Blue Hill Jt. Venture

Plant in Hancock county in Maine, United States with commodities Copper, Sulfur-Pyrite, Lead, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10194442
MRDS ID W019747
MAS/MILS ID 0230090005
Record type Site
Current site name Blue Hill Jt. Venture
Alternate or previous names Douglas Mine, Ure Mine, Mammoth Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -68.62266, 44.39055 (WGS84)
Elevation 37
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Hancock(county)

Maine(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Blue Hill(quadrangle 1:24,000 scale)

Bar Harbor(quadrangle 1:100,000 scale)

Bangor(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Maine Coastal(hydrologic unit)

Maine Coastal(hydrologic accounting unit)

Maine Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Maine Hancock

Commodities

Commodity Importance
Copper Primary
Sulfur-Pyrite Tertiary
Lead Tertiary
Silver Tertiary
Zinc Critical Primary

Materials information

Materials Type of material
Amphibole Unknown
Andalusite Unknown
Biotite Unknown
Calcite Unknown
Chalcopyrite Unknown
Chlorite Unknown
Cordierite Unknown
Galena Unknown
Magnetite Unknown
Muscovite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown
Sericite Unknown
Silver Unknown
Sphalerite Unknown
Talc Unknown

Nearby scientific data

Main Entrance (1) -68.62266, 44.39055
ListMap

Economic information

Ore body information

  • Strike N65E
    Dip 25S
    Thickness 4M
    Length 349.3M
    Width 362.1M
    Area 13.9HA
    Depth to top 208M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FOLDING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N65E:25S
    Minimum Depth to Top 9.1
    Avg. Thick. Unconsol. Mat. 9.1
    Min. Thick. Unconsol. Mat. 9.1
    Total Surface Area (HA) 13.9
    Date of Last Modification 830627

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant No
Discovery year 1961
Year of first production 1972
Plant type Beneficiation (Mill)
Plant subcategory Flotation

Mining district

District name Blue Hill District

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights State Lease
Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Kerramerican, Inc. (Subsid. Of Kerr Addison Mines Ltd.)
    ID 1700188
    Interest 60
    Home office Canada
    Year 1976
  • Type Owner
    Owner Black Hawk Mining Ltd. (Subsid. Ofdenison Mines Ltd.)
    ID 1700188
    Interest 40
    Home office Canada
    Year 1976

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Measured 500744mt ore
    Demonstrated 500744mt ore
    Total resources 500744mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.46 wt-pct Copper Major 1981
    Zinc Zn 5.31 wt-pct Zinc Major 1981

Comments on the reserve resource information

  • THE PUBLISHED RESERVE FIGURE PRESENTED IN THE R DATA SET IS BELEIVED BY THE EVALUATOR TO BE INCORRECT BASED ON INFORMATION OBTAINED DURING THE MAINTENANCE PROGRAM. HOWEVER, SINCE E&MJ PUBLISHED THE DATA, IT IS INCLUDED AS A PUBLISHED RESERVE ONLY.
  • BUREAU VALUE EQUALS MATRIX 1 COL. 2 OF EVALUATOR DEPOSIT IS MINED OUT; CLOSED OCTOBER 1977. Q-MATRIX RESERVES WERE AS FOLLOWS: MATRIX 1 MT ORE COL1 COL2 90 % 473,000 75 % 1,737,000 473,000 50 % 1,737,000 473,000 25 % 1,737,000 473,000 10 % 1,737,000 473,000 ZN 7.2 WT.% 3.40 WT.% CU 0.54 WT.% 1.46 WT.% PB 0.38 WT.% AG 2.52 G/MT MATRIX 9, COLUMN 5 EQUALED MATRIX 1, COLUMN 2. CONVERSATION WITH A COMPANY OFFICIAL REVEALED THAT ABOUT 50,000-75,000 TONS OF ORE REMAINS IN THE MINE AS PILLARS FOR GROUND SUPPORT ONLY. THIS ORE IS UNRECOVER- ABLE; THEREFORE, THE ORE IS CONSIDERED TO BE MINED-OUT. THE Q-MATRIX HAS BEEN MODIFIED TO REFLECT THIS. THE ORIGINAL Q1C1 RESERVE FIGURE AT THE 75% AND LOWER PROBABILITY LEVELS INCLUDED THE 493,000 MT FROM Q1C2 AND 1,264,000 MT FROM A SEPARATE ORE BODY KNOWN AS THE CARLETON ZONE. THE CARLETON ZONE ORE WAS NOT DEVELOPED AS PART OF THIS OPERATION AND WILL BE EVALUATED SEPARATELY. THEREFORE, Q1 AND Q9 HAVE BEEN MODIFIED TO SHOW THAT THERE ARE NO RESERVES REMAINING AT BLUE HILL. THE CARLETON ZONE HAS BEEN ASSIGNED SEQUENCE NO. 023-009-0310 AND WILL RECEIVE A COMPLETE MA EVALUATION.

Workings at the site

  • Type of workings Underground
    Length 4905M
    Overall depth 213M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method ROOM AND PILLAR 10-34
    Swell Factor .52
    Percent Waste Rock 15.2
    Percent Recovery 100
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics NO PLANES OF WEAKNESS
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    Length of Inclines (m) 274
    Slope of Inclines 9
    Number of Inclines 2
    Avg. Length of Adits (m) 0
    1st Condition of Workings OPEN
    Capacity 614
    Capacity Units MT ORE/DAY
    Unit Production Cost 16.81
    Units of Production $/MT ORE
    Operating Days per Year 312
    Operating Shifts per Day 3
    Year of Information 1978

Reference information

Bibliographic references

  • Deposit

    MSHA LIST 07/26/78.

  • Deposit

    MSHA.DBF/RESP_ID, 02/95; UNDER A DIFFERENT ID#; SEE COMMENS.

  • Reserve-Resource

    1981 ENGINEERING AND MINING JOURNAL DIRECTORY OF MINING.

  • Reserve-Resource

    P. 200.

  • Deposit

    EARL, K. M., 1950, IVESTIGATION OF THE DOUGLAS COPPER DEPOSI

  • Deposit

    OCK COUNTY, MAINE, U.S. BUREAU OFMINES R.I. 4701. CONTAINS

  • Deposit

    INFORMATION ON MINE AND CORE DRILL HOLE DATA.

  • Deposit

    EMMONS, W.H., 1910, SOME ORE DEPOSITS IN MAINE AND THE MILAN

  • Deposit

    NEW HAMPSHIRE, U.S.G.S. BULLETIN 432. PRODUCTION FIGURES FO

  • Deposit

    DAYS OF DOUGLAS MINE.

  • Deposit

    HOWD,F.H. AND DRAKE, D.P.,1974, ECONOMIC DEPOSITS AT BLUE HI

  • Deposit

    GUIDEBOOK FOR FIELD TRIPS IN EASTCENTRAL AND NORTH CENTRAL M

  • Deposit

    EW ENGLAND INTER COLLEGEATE GEOLOGICAL CONFERENCE 66TH ANNUA

  • Deposit

    NG, PHILIP H. OSBERG, EDITOR. --MINE HISTORY, GEOLOGY, DESCR

  • Deposit

    OF ORE DEPOSITS.

  • Deposit

    KERR ADDISON MINES LTD., 1975 ANNUAL REPORT TO SPAREHOLDERS

  • Deposit

    CTION &GRADES FOR 1975; ORE RESERVES.

  • Deposit

    KERRAMERICAN, INC., 1975, INTERNAL LETTER AND OTHER DATA INC

  • Deposit

    N BACKUP FILES.-- RESERVES, PRODUCTION, TONS OF CONCENTRATE

  • Deposit

    LI, CHING-YUAN, 1942, GENESIS OF SOME ORE DEPOSITS OF SOUTHE

  • Deposit

    MAINE, G.S.A. BULLETIN, V. 53, PP. 15-32.--MODE OF OCCURRENC

  • Deposit

    ROLOGY, PETROGENESIS.

  • Deposit

    MINING ENGINEERING, SEPT. 1964, MAINE REENTERS MINING PICTUR

  • Deposit

    ORT OF BLACK HAWK MINE UPCOMING DEVELOPMENT IN 1964.

  • Deposit

    NORTHERN MINER, FEB. 8TH, 1968, --RESERVES, PREPRODUCTION CA

  • Deposit

    OSTS.

  • Deposit

    ROWSWELL, M.D., 1976, EXECUTIVE VICE PRESIDENT, KERR ADDISON

  • Deposit

    LTD., TORONTO, ONTARIO, CANADA (PERSONAL COMMUNICATION--INTE

  • Deposit

    COSTING, PRODUCTION AND OTHER INFORMATION ON MINING, BENEF.&

  • Deposit

    U.S. BUREAU OF MINES--MINERALS YEARBOOK, 1972-1973.-- PRODUC

  • Deposit

    TA.

  • Deposit

    U.S. DEPT. OF COMMERCE, AUG. 1973, CLIMATOGRAPHY OF THE U.S.

  • Deposit

    (NEW ENGLAND)--CONTAINS MONTHLY NORMALS OF TEMP. PRECIP. ETC

  • Deposit

    U.S.G.S., 1972, CATALOG OF INFORMATION ON WATER DATA (DRAIN

  • Deposit

    IN DATA).

  • Deposit

    WILTON, C.K., 1975, GEOLOGY OF THE KERRAMERICAN MINE, BLUE H

  • Deposit

    NE, U.S.A. COMPANY INTERNAL GEOL.REPORT. --GEOLOGY, MINE HIS

  • Deposit

    RE GENESIS, PRODUCTION.

  • Deposit

    WILTON, C.K.,(SENIOR DEVELOPMENT GEOLOGIST, KERR ADDISON MIN

  • Deposit

    ),1976 PERSONAL COMMUNICATION--INTERVIEW-- PROVIDED MUCH DAT

  • Deposit

    MASS DATA FORMS A-1 THROUGH A-10.

  • Deposit

    YOUNG, R.S., 1962, PROSPECT EVALUATION, HANCOCK COUNTY, MAIN

  • Deposit

    SPECIAL ECONOMIC STUDIES SERIES NO. 2, MAINE GEOLOGICAL SURV

  • Deposit

    DOUGLAS MINE HISTORY -EM SURVEY DATA, CORE LOGS

  • Deposit

    THE OFFICIAL RAILWAY GUIDE (N.AMERICAN FREIGHT SERVICE EDITI

  • Deposit

    (MARCH-APRIL, 1976-- RR TRANSPORTATION DISTANCE DATA & MAPS.

  • Deposit

    REFERENCES THAT FOLLOW RELATE TO MAY 1977 REVIEW AND UPDA

  • Deposit

    DEUTMAN G.,GENERAL MANAGER,KERRAMERICAN BLUE HILL JOINT VENT

  • Deposit

    MINE,PRIVATE COMMUNICATION, MAY 1977

  • Deposit

    SCHROEDER H.J.,COMMODITY SPECIALIST,U.S.BUMINES,PRIVATE COMM

  • Deposit

    TION,MAY 1977

  • Deposit

    BABITZKE,H.R.,MAINE LIASON OFFICER,U.S.BUMINES,PRIVATE COMMU

  • Deposit

    TION,MAY 1977.

  • Deposit

    WILTON,C.K.,SENIOR DEVELOPMENT GEOLOGIST,KERR ADDISON MINES

  • Deposit

    PRIVATE COMMUNICATION,MAY 1977.

  • Deposit

    STECKLEY,R.C.,AND J.F.LEMONS,JR.,A METHOD FOR UPDATING COST

  • Deposit

    ES FOR THE MINERALS AVAILABILITY SYSTEM,U.S.BUMINES,MAS,MAY

  • Deposit

    PP.

General comments

Subject category Comment text
Deposit SEE CLAIM MAP INCLUDED WITH SUMMARY FILE REPORT FOR DETAILED BREAKDOWN OF MINERAL HOLDINGS (CLAIMS). THE DEPOSIT REVIEWED 11/78 BY WILBURN. MSHA LIST, 07/78, LISTED AS TEMP SHUTDOWN. MSHA.DBF/RESP_ID, 1995 #1700057 NOT #1700188 ID MAY HAVE CHANGED. COMPANY IS THE SAME. STAT. INACTIVE. COULD BE THE SAME AS SEQ# 0230090001; SEQ# 0230090053 ALSO SEQ# 0230090060 DATABASE AND FILE UPDATED DURING MAINTENANCE PROGRAM, JUNE 1983. ORIGINAL EVALUATION BY DAVID UHRIN IN JULY 1977 AND ZINC CONTRACT NO. JO166037. MAINTENANCE UPDATE BY K.M. CROYLE. EVALUATION HAS BEEN CHANGED FROM A PRODUCER, C-TYPE EVALUATION TO A PAST PRODUCER, L-TYPE EVALUATION. THE PUBLISHED RESERVE DATA SET WAS ADDED, AND THE Q DATA SETS REVISED AS EXPLAINED BELOW. ALL OTHER DATA RETAINED AS AN HISTORICAL RECORD OF THE OPERATION BEFORE ITS CLOSURE IN 1977. THE FOLLOWING RESULTS FROM FY 1983 MAINTENANCE ON BLUE HILL: BLUE HILL OPERATIONS SHUT DOWN IN OCTOBER 1977. RECLAMATION HAS BEEN ON-GOING FOR THE PAST 5 YEARS. THE MAJORITY OF THE RECLAMATION SHOULD BE COMPLETED BY THE END OF 1983. THE PROPERTY AND EQUIPMENT ARE FOR SALE. AT THE TIME OF THE ORIGINAL EVALUATION (1977),

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1995 K M C U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusAbandoned since 06/16/1978
MSHA mine ID1700188
Mine name (MSHA)Blue Hill Mine And Mill
Current operatorKerramerican Inc
Mine typeFacility (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references

Maps centered on this site