The Knob 1 zone is located about 1300 metres south-southeast of the confluence of Fall and Todd creeks. This confluence is approximately 15 kilometres south of the confluence of Todd Creek and the Bowser River.
The area is underlain by Hazelton Group rocks of the Lower Jurassic Unuk River Formation (Bulletin 63). Pervasively altered northwest(?)-trending andesite flows and breccias are intruded by fine grained mafic dikes, 1 to 3 metres wide. North to northwest-trending, vertically dipping fractures, shears and faults are the most conspicuous structural elements in the area (Assessment Report 18800).
Mineralization consists of several, narrow (1 to 10 centimetres wide), chalcopyrite veins that occur in a large prominent gossan. The gossan includes extensive areas of quartz-sericite-pyrite alteration. A grab sample from one of the veins assayed 0.37 per cent copper; values for other metals were negligible (Assessment Report 17423).
Follow-up drilling on the Knob zone in 2008 comprised four holes (TC08-04 to 07) that totalled about 1446 metres and tested several geophysical and alteration zones. Generally, zones of weakly anomalous gold and silver were returned from some of the holes, mainly drillhole C08-06, with some indication of base metal zoning.
In 2009, channel sampling in the Knob East area returned copper values ranging between 0.16 to 0.38 per cent in 0.5-metre-wide samples. Chip samples taken in the Knob North area are generally characterized by low to weakly anomalous gold values (up to 0.2 gram per tonne) often correlating with some weakly anomalous silver values (up to 2.1 grams per tonne) and some weakly anomalous copper values (up to 0.01 per cent). Another area of interest is located on the east side of Knob Creek and hosts narrow (2-10 centimetres) discontinuous sulphide veins that trend 320 degrees and that comprise quartz-sericite-carbonate-sulphide+/-pyrite-chalcopyrite-malachite-barite-carbonate-hematite-chlorite and are hosted by shear zones in crystal tuff breccia. The chip samples include some anomalous gold values (up to 0.07 gram per tonne), anomalous silver values (up to 38.5 grams per tonne), some anomalous copper values (up to 0.06 per cent), strong lead values (up to 1.6 per cent) and strong zinc values up to 5.42 per cent. Sample 429451 yielded 38.5 grams per tonne silver, 1.6 per cent lead and 5.42 per cent zinc over 30 centimetres; sample 429453 assayed 2.4 grams per tonne silver, 0.04 per cent lead and 1.1 per cent zinc over 5 metres (Assessment Report 31671).
An area of anomalous gold and copper values in chip samples is in the Knob Central area. The results range up to 2.37 grams per tonne gold, 3.4 grams per tonne silver and 3.35 per cent copper in sample 429541 over 0.76 metre. Sample 429543 contains 1.68 grams per tonne gold and 1.04 per cent copper over 1.88 metres. The anomalous values are associated with a persistent but narrow zone of copper-bearing veinlets with malachite and disseminated chalcopyrite. The zone trends 320 degrees and dips 85 degrees to the east. Sample 430548 was taken from a 5 to 20 centimetre oxidized shear about 400 metres east of the line of chip samples referenced above. Sample 430825 was taken about 280 metres north of drillhole TC08-05 from a sulphidized alteration zone and analyzed 0.34 gram per tonne gold and 1.1 grams per tonne silver (Assessment Report 31671).
The Mini Knob showing in the Knob South area is located about 400 metres southwest of drillhole TC08-05, on the west side of Todd Creek, south of the Knob Central area. Some of the chip samples (429458-460) are characterized by some anomalous gold (up to 0.11 gram per tonne), silver (up to 9.6 grams per tonne) and copper values (up to 0.07 per cent). The samples comprise altered tuff with fracture fillings of quartz, sericite and pyrite. Several channel samples (429601-613) were cut about 25 metres to the northeast of the above referenced chip samples. The one metre contiguous samples range up to 0.054 per cent copper and 0.047 per cent zinc. Another area of interest is located about 1.2 kilometres south of the Mini Knob on the west side of Todd Creek. Chip samples (429463-465) yielded values ranging up to 0.04 per cent copper, 0.134 per cent lead and 0.048 per cent zinc (Assessment Report 31671). The samples are from altered (silica-chlorite-sericite) and fractured fine grained volcanic or intrusive rocks.
In 1986, Noranda Exploration Limited staked the Toc 1-12 claims to cover showings in the Todd Creek area. During 1986-89, Noranda completed geological mapping, silt and soil geochemical surveys, induced polarization and magnetometer surveys, and diamond drilling. The work was done mostly on the Todd Creek North (104A 106) and F 1 zones (104A 107). The Knob 1 zone was discovered in 1987. Refer to Todd Creek-South zone (104A 001) for a detailed work history of the Todd Creek property area showings.
In 2017 stream sediment samples were collected by Millrock Resources Inc from streams that drained the mountain slope area where Knob 2 is located. The highest copper results from the 2017 sampling was recorded in a single sample which drained from the same slope but further south and west than the Knob 2 location. This sample (W366286) yielded 553 parts per million copper, 60 parts per billion gold and 0.78 pars per million silver (Assessment Report 37268, Table 3 and Map 2a(1)). The two stream tributaries draining the area closest to the plotted location of Knob 2 were much less geochemically interesting.
