Mineral Record Details
Site Visit Information
Date: Aug 11, 1999
Geologist: G Bennett
Notes: The mineralized portion of the vein system has a known strike length of 4200 feet; the width ranges from 1 to 30 feet, and averages 6.5 feet. It has been explored by drilling to a depth of 1000 feet, although most of the drilling has been confined to depths of 500 feet or less. Drilling results show that copper mineralization is confined to a number of lenses within the vein system. To a depth of 1000 feet, total reserves, including 10 % allowance for dilution, are stated to be 415 000 tons, grading 1.8% Cu, over an average width of 6.5 feet (Northern Miner, May 27, 1965).
Record: MDI41J06NE00046
General
Mineral Record Identification | Record Name(s) | Crownbridge - 1969, Iron Bridge - 1991, Iron Bridge Group - 1991 |
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1991-Sep-01 |
| Date Last Modified | 2022-Oct-13 |
| Created By | |
| Revised By | |
Commodities
Primary Commodities: Copper
Location
Township or Area: Kamichisitit
Latitude: 46° 29' 32.27" Longitude: -83° 2' 22.7"
UTM Zone: 17 Easting: 343474.132 Northing: 5150768.368 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41J06NE
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: 3 kilometres east of the west boundary of Kamichisitit Township and 4.3 kilometres south of the north township boundary.
Exploration History
1942 Sampling and geol. report by Erie Canadian Mines Ltd. 1958-1960: 75 d.d. holes totalling 30,133 feet by Andover Canadian Mines Ltd. These drill records are fairly complete and are incorporated as a part of the company records of Crownbridge Copper Mines Ltd. From these records D.C. Mckechnie, P.Eng, Sudbury, Onatrio, estimated drill indicated ore reserves of 190 000 tons grading 2.01% copper across and average width of 6.1 feet above the 500 foot horizon in the Central, West, and J zones. Since then the Crownbridge company has drilled some ten additional holes totalling about 6800 linear feet. The drilling was done to the east of the central zone. 1963-1965: 46 d.d. holes totalling 26,867 feet plus further drilling for which records are not available by Crownbridge Copper Mines Ltd. 1966-1967: 250 ton per day mill constructed on property by Copper Concentrators Ltd., for custom milling of material from this and other nearby deposits. copper Concentrators declared bankruptcy in 1967. Crownbridge sank a 30 foot deep shaft. 1968: Property purchased by Cannon Mines Ltd.