SMDI #

2420

Historical Showing Names

Greywacke Gold Deposit (North, Central, and South Zones)

Project Name

Greywacke Lake

UTM Northing (NAD83 Z13)

6177542.3200

TRM (Township-Range-Meridian)

78-17-2

Associated Commodities

Copper, Iron, Lead, Marcasite, Molybdenum, Zinc

Status

Deposit: Advanced Exploration

Geological Domain

Kisseynew

Host Minerals

Molybdenite, Pyrite, Pyrrhotite

Exploration History

12/1/2023 (From Saskatchewan Exploration and Development Highlights 2023, Table 4, p.12) 12/1/2024 MAS Gold Corporation is planning drill programs for its Greywacke Lake and Preview North (also known as North Lake) properties, north of La Ronge. (Saskatchewan Exploration and Development Highlights 2024, p.13) (See also Reserves/Resources, from Saskatchewan Exploration and Development Highlights 2024, Table 6, p.12) 6/10/1992 In 1959, the area around the Greywacke Showing was geologically mapped for the Saskatchewan Geological Survey by W.J. Pearson and E. Froese. In 1961, A. Morris mapped the NTS block immediately east of the showing at 1" to 4 miles. In 1966, Noranda Exploration Company Limited completed an airborne EM and magnetic survey over undisposed land that covered the showing area (AF 73P15-0017). In 1977, SMDC completed an airborne INPUT and magnetic survey over nearby MPP 1112 that overlapped the showing area (AF 73P16-0022). In 1980, SMDC staked the showing area as CBS 6753. Between 1981 and 1983, SMDC completed regional prospecting, mapping and sampling that resulted in the discovery of the Rainbow Showing (AF 73P10-0076). In 1981, SMDC flew an second INPUT and magnetic survey that covered the showing location (AF 73P10-0073). 1982, completed regional geological mapping and prospecting that covered the general showing area (AF 73P10-0078). On 1 November 1983, SMDC restaked the immediate showing area as CBS 8911. In 1985, SMDC completed reconnaissance prospecting and rock and soil sampling in the showing area (AF 73P15-0053). In 1986, geological mapping, and further prospecting and boulder sampling was completed on the Shandy grid (AF 73P-0005). In 1986, D.J. Thomas geologically mapped the showing area at a scale of 1:20,000 for the Saskatchewan Geological Survey. In 1987, SMDC completed geological mapping, prospecting and grab sampling of the southeast portion of the Shandy grid (AF 73P10-0112). Grab sample DK70-319, taken from the showing outcrop, returned 490 ppb Au. Ground VLF-EM and magnetic surveys were completed over the showing area (AF 73P15-0067). World Geoscience Corporation flew a high resolution VLF-EM and magnetic survey which covered the showing (AF 63M05-0030). In 1988, Cameco completed detailed mapping, prospecting, stripping and chip sampling of that portion of the Shandy grid around where sample DK70-319 was taken (AF 73P15-0075). This work resulted in the discovery of the Greywacke Mineralized Zones in a metagreywacke horizon west of Greywacke Lake. The better sample results are given above. In 1989, Cameco completed ground EM and magnetic surveys over the Greywacke Showing (AF 73P15-0079) as well as geological mapping, prospecting, stripping, trenching, and channel sampling of the Greywacke North, Central, and South zones and the Hoover Zone which is located along strike 3.5 km (2.2 miles) to the north (AF 73P10-0144). Between 1989 and 1990, Cameco completed drill holes GW89-1 to 10 and GW90-11 to 30 on the Greywacke and Hoover showings (AF 73P10-0142). In the winter of 1990, Cameco completed a ground magnetic survey over the showing (AF 73P15-0090). In the summer of 1990, Cameco completed geological mapping, prospecting, and rock sampling on the Greywacke Trend between the Greywacke Showing and the south end of Minuhik Lake (AF 73P15-0093). This work resulted in the discovery of the Wasp Lake Showing or SMDI 2569. In 1991, Cameco completed ground HLEM and VLF-EM surveys, a core and outcrop petrographic study, and drill holes DK91-31 to -36 on the Hoover grid which covers the Greywacke Trend between the Greywacke North Showing and the Wasp Showing (AF 73P10-0094). No significant mineralization was intersected. In the same year, bulk till sampling was completed over the showing (AF 73P-0020). In 1994, they completed four drill holes (GW94-37 to -40) to test the Greywacke North and South Zones (AF 73P10-0165). All four intersected significant sub-economic gold mineralization. On 1 April 2001, CBS 8911 was allowed to lapse. On 1 April 2001, M. Lederhouse staked the zone as S-106711. He went into a 50% partnership with JNR Resources Ltd. Eventually, Shane Resources Ltd. Took over Lederhouse's 50% interest in the property. In May of 2001, Masuparia Gold Corporation optioned the property. In the fall of 2001 to 2002, Masuparia completed 23 drill holes on the Greywacke North and South zones, a ground magnetic survey over the Gerywacke Lake, Main, and North grids, and a soil sample survey over the Greywacke Lake grid (AF 73P10-0169). 17 drill holes were completed on the North Zone of the deposit (holes GW-01-41 to -52, -56, -57, -59, -60 and -65) and 4 holes (GW-01-61 to -64) were completed on the Greywacke South Zone. The drill program discovered significant sphalerite at the Greywacke North Zone and signiicant ghanite at the Greywacke South Zone. In 2002, a partnership involving Masuparia Gold (operator), JNR Resources, United Carina Resources, and Pine Channel Gold completed lake sediment at the Greywacke Zone, recce Geological mapping, prospecting, and soil sampling between Closure Lake and the zone,and 16 drill holes (02-66 to 02-80, 02-76A) on the Greywacke North Zone (AF 73P10-NE-0176).

Reserves and/or Resources

2024-12-01 Summary: Greywacke North: Measured and Indicated Mineral Resource of 645,000.00 tonne - Gold: 101,000.00 troy oz @ 4.9 g/tonne (Cutoff: 0.65) 2023-12-01 Summary: Greywacke North: Measured and Indicated Mineral Resource of 645,000.00 tonne - Gold: 101,000.00 troy oz @ 4.9 g/tonne (Cutoff: 0.65) 2022-01-12 Summary: Greywacke North: Indicated Mineral Resource of 645,000.00 tonne - Gold: 101,000.00 oz @ 4.9 g/tonne Greywacke North: Inferred Mineral Resource of 410,000.00 tonne - Gold: 54,000.00 oz @ 4.12 g/tonne 2015-08-29 Greywacke (North zone) NI 43-101-compliant Measured & Indicated Resource (August 29, 2015) of 252,299 tonnes grading 9.92 g/t Au for 80,587 oz. Inferred Resource of 58,456 tonnes grading 7.42 g/t Au for 13,951 oz. Summary: Measured and Indicated Mineral Resource of 252,299.00 tonne - Gold @ 9.92 g/tonne Inferred Mineral Resource of 58,456.00 tonne - Gold @ 7.42 g/tonne 2012-04-30 Greywacke (North zone) NI 43-101 compliant Measured & Indicated Resources of 184,000 tonnes grading 8.4 g/t Au. Inferred Resource of 58,000 tonnes grading 7.29 g/t Au. Summary: Greywacke (North zone): Measured and Indicated Mineral Resource of 184,000.00 tonne - Gold: 184,000.00 tonne @ 8.4 g/tonne Greywacke (North zone): Inferred Mineral Resource of 58,000.00 tonne - Gold: 58,000.00 tonne @ 7.29 g/tonne 2005-01-01 A resource of 328,000 tonnes grading 0.27 oz/ton (9.26 g/t) Au. Summary: Historic reserve (unspecified) of 328,000.00 tonne - Gold: 328,000.00 tonne @ 0.27 oz/ton 2002-12-31 297,555 t grading 0.27 oz/ton Au. Summary: Historic reserve (unspecified) of 297,555.00 ton - Gold: 297,555.00 ton @ 0.27 oz/ton 1991-12-01 Greywacke North Zone: 328,000 tons of ore with an average grade of 0.27 oz/ton Au which is surrounded by a wider sub-economic zone of mineralization. Summary: Greywacke North Zone: Historic reserve (unspecified) of 328,000.00 ton - Gold: 328,000.00 ton @ 0.27 oz/ton