The Kirk occurrence is located on the Four Mile River, near Frontline Creek, approximately 50 kilometres southeast of Cassiar, 85 kilometres northeast of Dease Lake or approximately 120 air-kilometres south-southwest of Watson Lake.

The occurrence area is underlain by volcanic and sedimentary rocks of the Pennsylvanian to Permian Sylvester Allochthon. Predominant are volcanic rocks comprising fine-grained andesitic and dacitic lavas and tuffs. Siliceous rocks on the property have been variably described by previous workers as quartzites and rhyolites. Sediments include yellow and grey chert/quartzite, pale-grey phyllite, conglomerate and white to grey limestone.

Mineralized, northwest-trending, silicified or carbonatized shear zones from 1 to 9 metres in width with quartz, epidote and ankerite, occur adjacent to a schistose metavolcanic-carbonate contact. Mineralization consists of pyrite, chalcopyrite, sphalerite, galena, specular hematite and malachite. A chip sample over 3 metres assayed 99.41 grams per tonne silver, 1.01 per cent copper, 0.39 per cent lead and 1.10 per cent zinc over 9 metres (Assessment Report 7113).

Mineralization exposed on the property is reported as occurring in five separate mineralized outcrops. The mineralization is variable in composition from one zone to another but comprises essentially a mixture of the sulphides of copper, lead, zinc and iron. Pyrite, chalcopyrite and sphalerite are predominant, with galena generally scarce. Both sphalerite and galena are absent in several of the mineralized zones, particularly in the silicified shears. Malachite is visible at many locations.

The following descriptions of Showings 1 to 4 are based on a 1968 assessment report (1626). Showing 1 comprises a strongly mineralized shear zone, well displayed in the face of a steep bluff. Mineralization was partly exposed during initial exploration on the property by a bulldozer cut at the base of the bluff. A 9.1-metre wide zone of mineralization with an estimated true thickness of 6.4 metres assayed 0.79 per cent copper, 0.22 per cent lead, 4.28 per cent zinc, 44.6 grams per tonne silver and trace gold. Five metres upslope, the zone narrowed to a true thickness of 3.0 metres and yielded 1.30 per cent copper, 0.34 per cent lead, 5.50 per cent zinc and 49.4 grams per tonne silver over a 3.6-metre sample width.

Showing 2 is roughly parallel to and located approximately 60 metres southwest of Showing 1 along the same bluff. The showing comprises a silicified, steeply dipping dike (type uncertain) predominantly containing pyrite and chalcopyrite. A measured 1.5-metre sample interval across this showing assayed 0.94 per cent copper, 0.12 per cent lead, 0.96 per cent zinc and 73.4 grams per tonne silver. Showing 1 and Showing 2 were described as appearing to narrow toward the east and thicken to the west and downdip.

Showing 3 occurs 180 metres southeast of Showing 1 and comprises a 0.3-metre-thick interval of massive chalcopyrite and pyrite bounded on either side by 0.5 metre of mineralized wallrock. The mineralization, reported to trend roughly west with a 65 degree northerly dip, is truncated to the east by a southeast-trending cross shear. A 1.2-metre sample collected across this mineralization assayed 7.24 per cent copper and 102.8 grams per tonne silver. No lead or zinc assays were run on this sample.

Showing 4 (B) occurs approximately 975 metres to the southeast of Showing 1 and comprises a small exposure of sulphide rubble and outcrop. At this location, two mineralized outcrops are exposed 3 metres apart. The showing comprises silicified volcanic rocks containing pyrite and chalcopyrite. A combined 1.2-metre sample across the two mineralized zones assayed 0.66 per cent copper and 6.17 grams per tonne silver.

Showings 1 to 3 as described above were reported in a 1970 assessment report (2765) to occur along the main mineralized trend between the airstrip and Pond Lake. Mineralization is contained within a broad zone of shearing some 45 metres in width containing silicified, epidotized and carbonatized rocks. The 1970 report also describes two other mineralized zones, the South Pond Lake zone and Northeast zone, to the south and east-northeast of Pond Lake, respectively. The South Pond Lake zone is reported as being similar to the original discovery zone with copper, lead and zinc found in shear zones. The Northeast zone corresponded to a strong induced polarization response over an area 240 to 365 metres in width and 760 metres long defined by a 1968 survey.

Work History

The area was staked by Beal Carlick prior to 1966 and was restaked by Bob Kirk in 1966. In 1966, a 29-kilometre long access road was constructed from McDame Post on the Dease River, a 370- by 30-metre gravel airstrip was constructed and limited bulldozer trenching was carried out. The first recorded work was in 1967, when North Central Minerals carried out geological, soil geochemical and EM-16 electromagnetic surveys. In 1968, an induced polarization survey was carried out on behalf of Cry Lake Minerals. In 1969, Cry Lake Minerals carried out an airborne aeromagnetic survey over the property and conducted further geological and soil geochemical surveys. No data on the number of soil samples collected are available and no data on the geophysical survey are available.

Trenching, in 1969, on the No. 1 zone exposed greater than 60 metres of mostly mineralized outcrop with at least 22.5 metres of this zone representing the downward (southwestward) extension of the original No. 1 zone. Chip samples, taken at 0.3-metre intervals, yielded an average of 29.3 grams per tonne silver, 0.69 per cent lead, 2.39 per cent zinc and 0.18 per cent copper over 39 metres, whereas individual samples (36793 through 36795) yielded up to 0.9 gram per tonne gold, 144 grams per tonne silver, 8.90 per cent lead, 16.50 per cent lead and 4.90 per cent copper (Assessment Report 2765).

This work was followed in 1970 by 509 metres of diamond drilling in eight holes. The details and results of the drill program are not available; however, it has been reported that the drillhole underneath the main showing area did not intercept significant mineralization. The locations of several of the drillholes were noted in the field during a 1999 program; however, based on the foliations of mineralization observed in the main showing area it is possible that the drillhole on this zone may have been drilled subparallel to mineralization.

No further work on the property is recorded until 1978, when Esso Resources completed ground electromagnetic and magnetometer surveys over 16.7 line-kilometres of grid, rock and soil (382) sampling and geological mapping. Chip sampling of the A (1 and 2) zone yielded 1.01 per cent copper, 1.10 per cent zinc, 0.39 per cent lead and 90.6 grams per tonne silver over 3.0 metres, whereas a chip sample on the B (No. 4) zone assayed 2.76 per cent copper, 1.48 per cent zinc and 49.4 grams per tonne silver over 3.0 metres (Assessment Report 7113).

This work was followed by an exploration program in 1980 when Keystone Exploration carried out a ground electromagnetic EM-16 survey. This work was followed in 1984 by limited magnetic and soil (62) geochemical surveys.

No further work was carried out until 1994, when a limited rock (19) and soil (59) sampling program was carried out on behalf of the Predator Syndicate. In 1999, 18 rock samples were collected on the property. A rock sample (648-TC-04) of massive pyrite and sphalerite in calcite gangue from the No. 1 or 2 zone assayed 0.85 per cent copper, 2.23 per cent lead, 17.55 per cent zinc and 95.0 grams per tonne silver (Assessment Report 26150).

In 2009, a geochemical soil survey (215 samples) was carried out by McDame Explorations Ltd.