Ontario Geological Survey
Permanent Link to this Record:
MDI000000001679
| Record Name(s) | Shaft Zone B - 1994, Trail Zone - 1987 |
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| Record Status | Prospect |
| Date Created | 2014-Mar-27 |
| Date Last Modified | 2022-Sep-13 |
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| Revised By |
Primary Commodities: Gold
Township or Area: Baker
Latitude: 48° 47' 5.11" Longitude: -91° 45' 20.61"
UTM Zone: 15 Easting: 591400 Northing: 5404275 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B13SW
Point Location Description: Approximate centre of zone.
Location Method: Based on Assessment
Access Description: The Shaft Zone B is located approximately 10 km west-northwest of Atikokan, near the historic Harold Lake Mine. Access to the property is obtained by following the Valerie Falls Road for approximately 13 km from Highway 622 and then turning west on a secondary logging road and following it for approximately 6 km. The former Harold Lake Mine site can then be accessed by travelling southeast for 1.6 km along an all-terrain vehicle trail.
1987-88: Societe Miniere Mimiska Inc. – prospecting, geological mapping, geophysical surveys and diamond drilling. 1995-97: 888726 Ontario Ltd., A. Eveleigh, G. Clark, T. Maitland – prospecting, trenching, sampling, geophysical surveys. 2011-12: Osisko Hammond Reef Gold Ltd. – prospecting, trenching, geological mapping, sampling, assays.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.18866 | 52B13SE2001 | 52B13SE2001 |
| 2.50793 | 20000007092 | 20000007092 |
Mar 27, 2014 (Mark Puumala) - The Shaft Zone B gold deposit was discovered by Societe Miniere Mimiska Inc. during a 1987-88 exploration program that was carried out by the company in the Harold Lake ares. The Shaft Zone B (also known as the Trail Zone) deposit was explored on surface and tested at depth through a 13 hole diamond drilling program. This gold mineralized zone is located in the tonalite-metavolcanic rock contact zone, strikes 340 degrees, and covers a strike length of at least 500 m. This zone parallels the structure (Shaft Zone A) that hosts the past-producing Lakeshore and McComber veins at the Harold Lake Mine site. All of the diamond drill holes that targeted the Shaft Zone B structure encountered intersections of anomalous gold mineralization, with the most significant being 0.33 oz/ton over 9.5 feet (Larouche and Clark 1988; Clark 1998).
| Rank | Classification |
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| 1 | Lode (Gold) |
File - Resident Geologist Mineral Deposit File 52B13SW Harold Lake Mine
Publication Number: Date:
Author:
Publisher Name:
Location: Thunder Bay RGP office
Mono - Report of Activities 2013, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District
Publication Number: OFR6293 Date: 2014
Author: Puumala M.A., Campbell D.A., Tuomi R.D., Debicki R.L., Wilson A.C., Moses P., Brunelle M.R.
Publisher Name: Ontario Geological Survey
Location:
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