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Koba’s Harrier Uranium Project includes nine high-grade prospects where assays >1% U3O8 have been returned from rock chip samples, including assays >5% U3O8 from two of these prospects.

High-priority target areas within the Harrier Uranium Project

Extremely high-grade uranium mineralisation is abundant. Rock samples assaying greater than 1.0% U3O8 have been returned from nine different prospects, three of which have never been drilled. Assays include:

  • 5.83% U3O8 (Moran Heights Prospect)
  • 5.08% U3O8 (Fish Hawk North Prospect)
  • 4.86% U3O8 (Brook Prospect)
  • 3.48% U3O8 (Minisinakwa Prospect)
  • 2.12% U3O8 (Anomaly 7 Prospect)
  • 1.49% U3O8 (Fish Hawk South Prospect)
  • 1.49% U3O8 (Boiteau Prospect)
  • 1.31% U3O8 (Firestone Prospect)
  • 1.26% U3O8 (Anomaly 17 Prospect)

Figure 1. The Harrier Uranium Project lies within a world-class uranium district in eastern Canada. It includes nine prospects from which assays >1.0% U3O8 have been returned from rock chip samples.

The Harrier Uranium Project is located approximately 110km northwest of the regional hub of Goose Bay (population ~8,000) and 70km southwest of the small community of Postville in central Labrador within the province of Newfoundland and Labrador in eastern Canada (see Figure 1). It is located within an under-explored belt of Proterozoic and Archean aged rocks − part of a world class uranium district that hosts multiple significant uranium resources including:

  • Paladin Energy’s Michelin Uranium Project which comprises six deposits that together host 127.7Mlbs of U3O8; and
  • The Moran Lake and Anna Lake Deposits where historical resources comprise 14.5Mlbs U3O8 and 136.4Mlbs of V2O5.

The Harrier Project covers approximately 489km2 of highly prospective terrain. The project includes nine separate prospects from which extremely high-grade assays >1.0% U3O8 have been returned from rock chip samples (see Figure 1). This project is heavily underexplored as:

  • Three of these prospects have never been drilled;
  • Four of these prospects have been tested by 11 or less drill holes; and
  • Across the entire project a total of only 89 holes have been drilled previously for 9,834m.

No work has been undertaken at the project since 2012. There is considerable potential to discover large high-grade uranium deposits.

Fish Hawk North Prospect

Very high-grade rock chip assay results, including 5.08% and 3.09% U3O8, have been returned from the Fish Hawk North Prospect. The prospect was discovered when an airborne radiometric anomaly was being investigated in 2006. High-grade rock chip samples delineate mineralisation over approximately 500m of strike, with the strike extensions of the mineralisation concealed by cover. Two holes (for 198m) were drilled on a single section in 2006. One of these holes intersected two zones of highly anomalous uranium ~50m apart, but no follow-up work has ever been undertaken and there is considerable potential to discover additional high-grade mineralisation

Brook Prospect

At the Brook Prospect, assay results up to 4.86% U3O8 were returned from rock chip samples in 2007 when investigating an area with low level airborne radiometric anomalies and anomalous uranium in lake sediment samples. Rock chip samples assaying >0.25% U3O8 delineate a northeast-southwest trending zone that is approximately 3km long and 1km wide. This zone has never been drilled hence it is a high-priority exploration target.

Moran Heights Prospect

An exceptionally high-grade outcrop sample from the Moran Heights Prospect assayed 5.83% U3O8. Mineralisation was first identified in the late 1970s when a boulder returned an assay of 2.36% U3O8. Assays from the 11 boulders sampled at the time averaged 0.66% U3O8. Trench sampling in 2006 yielded assay results that included 3.7% U3O8, 3.5% U3O8 and 2.0% U3O8. Multiple drilling programs (33 holes for 3,350m) have confirmed the presence of uranium in bedrock, with the best drill result being:

  • 5.45m @ 0.106% U3O8.

There is considerable potential to discover additional high-grade mineralisation.

Boiteau Prospect

The Boiteau Prospect was discovered in 2008 when boulder samples returned very high grades, including 1.49% U3O8 and 1.10% U3O8. Forty outcrop samples were assayed and returned an average grade of 0.27% U3O8. Mapping and sampling have identified uranium mineralisation over 6km of strike length, with the majority of the previous work focused on a 3.5km zone where the highest-grade mineralisation was discovered. Mineralisation remains open along strike and is yet to be drilled. The previous operator had defined a series of targets and were making final preparations to drill in 2009, but they never executed their programs because of the subsequent decline in the uranium price. The Boiteau Prospect is a high priority target for follow-up.

Minisinakwa Prospect

The Minisinakwa Prospect was explored between 2006 and 2008. High-grade rock chip samples were collected from uranium rich boulders, with assays including 3.48% U3O8, 2.66% U3O8, 2.56% U3O8 and 1.75% U3O8. Previous work was focused on a prominent 2.5km long east-west lineament defined by low topography, high magnetics and the presence of uranium-rich boulders. 26 of the 29 rock chip samples collected from boulders returned assays >0.10% U3O8. A short seven hole, 1,042m, drill program was completed, targeting magnetic highs along the 2.5km trend. The primary source of the uranium mineralisation was not identified. Further work is warranted to identify the primary source of the high-grade uranium mineralisation sampled at surface.

Anomaly 7 Prospect

Anomaly 7 Prospect was first discovered in the 1970s. Mineralisation has been mapped over 3.5km of strike. Rock chip samples have returned assays up to 2.12% U3O8. A total of 11 holes (for 1147m) have been completed – testing only 350m of strike around the original discovery (some 600m west of the rock chip sample that assayed 2.12% U3O8). Better drill intersections include:

  • 23.38m @ 0.129% U3O8 including
    9.68m @ 0.249% U3O8;
  • 0.15m @ 4.36% U3O8 and
  • 0.25m @ 2.57% U3O8.

Only three holes (for 514m) have been completed at the prospect since the 1970s. This is a compelling target that warrants further investigation.

Anomaly 17 Prospect

The Anomaly 17 Prospect was also discovered in the 1970s when rock chip samples assaying up to 1.26% U3O8 were returned approximately 6km west-northwest of the Anomaly 7 Prospect. Only limited follow-up has been completed and no drilling has ever been undertaken.

Fish Hawk South Prospect

The Fish Hawk South Prospect was discovered in 2006 following investigation of airborne radiometric anomalies. Mineralisation has been traced at surface over 430m with assays up to 1.49% U3O8 in rock chip sampling. 13 holes (for 1,444m) were completed in 2007 with better drill results including:

  • 9.92m @ 0.106% U3O8 and
  • 0.94m @ 1.15% U3O8.

Firestone Prospect

Mineralisation at the Firestone Prospect has been mapped over 600m x 250m before it is concealed by cover. Rock chip assays up to 1.31% U3O8 have been returned. Ten short holes (for a total of 849m) were drilled in 2011 with the best drill result being:

  • 0.5m @ 0.519% U3O8.