Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52N02SE00007

Record: MDI52N02SE00007

General

Mineral Record Identification
Record Name(s) Uchi Mine - 1937, MacAulay Property - 1926
Related Record Type Simple
Related Record(s)
Record Status Past Producing Mine With Reserves or Resources
Date Created 1985-Nov-26
Date Last Modified 2024-Apr-03
Created By
Revised By

Commodities

Primary Commodities: Gold, Silver



Location

Township or Area: Earngey

Latitude: 51° 4' 26.51"    Longitude: -92° 35' 36.88"

UTM Zone: 15    Easting: 528473   Northing: 5658136    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N02SE

Point Location Description: Shaft in claim 5038

Location Method: AMIS Site Visit

Access Description: The property is located 2km from the southeastern shore of Lost Bay, Confederation Lake. A 2.5km old mine road leads from the lake and the Lost Bay camp to the mine site. The site is also accessible by land, via the hydro line which joining the South Bay road 5km to the west. Uchi Lake, 1.5km east, is accessible by float plane. The nearest community is Ear Falls, 86km to the southwest.



Exploration History

1927: Huronian Belt Company - surface exploration. 1928: Consolidated Mining and Smelting Company - shaft sinking, underground development. Circa 1935: Val D’Or Mineral Holdings and Harker Gold Mines - DD. 1937-43: Uchi Gold Mines Limited - in production


Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Birch-Uchi

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Felsic lava flow-unsubdivided 1 Rhyolite Near
Mafic lava flow-unsubdivided 1 Near
Mylonite/Fault Gouge/Pseudotachylite 2 Shear Zone Contains
Vein 3 Quartz Contains

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyriteEconomicOre

Mineral Record Details

Classification
RankClassification            
1 Lode (Gold)
Characteristics
Rank Characteristic            
1 Vein
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Uchi 1989 Unclassified 194137 Energy, Mines and Resources Canada, ONT-538, 1989 Grade: 5.40 g/t Au Gold 5.40 g/t
Production Data
Year Tonnes Commodities Reference Comment
1943 686800 Silver 446200 Ounces
Gold 3560350 Ounces
OFR5835, p. 215 Figures include ORE FROM UCHI, HANALDA, JALDA AND GRASETT PROPERTIES MILLED TOGETHER; Uchi Mine produced a total of 114 467.97 oz of Au and 14345 oz of Ag from 757 074 tons, for an average grade of 0.15 opt Au and 0.02 opt Ag

References

Map - Earngey and Birkett townships, Kenora District

Publication Number: M2428 Scale: 1:31,680    Date: 1980

Author: Thurston P.C.

Publisher Name: Ontario Geological Survey

Location:


Part - The Uchi Lake area

Publication Number: ARV47-03.002 Page: 74-77  Date: 1997

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology and gold deposits of the Uchi-Slate lakes area

Publication Number: ARV48-08.001 Page: 34-37  Date: 1997

Author: Bateman J.D.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 218-220  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


MonoMap - Geology of the Earngey-Costello area, District of Kenora, Patricia Portion

Publication Number: R234 Page: 91-94  Date: 1985

Author: Thurston P.C.

Publisher Name: Ontario Geological Survey

Location:


Publication - Canadian Mineral Deposits not Being Mined in 1989

Publication Number: MR 223 Page: ONT-538  Date: 1990

Author:

Publisher Name: Energy Mines and Resources Canada

Location:


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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office