The Shar 1 occurrence is located at the headwaters of Allan Creek approximately 8 kilometres south of the Alaska Highway, on Tootsee Ridge on the Nisutlin Plateau in northwestern British Columbia.

Mineralized quartz-filled shear zones (strike 045 degrees and dip 90 degrees south) with sparse pyrite, galena and sphalerite occur in quartz monzonite of the Early Cretaceous Cassiar batholith. The shear zones trend northeast. Porphyritic intrusive phases and late diabase dikes are also associated with the quartz monzonite. Propylitic alteration (chlorite, epidote, clay) of the plutonic hostrock is associated with the hydrothermal event.

In 1980, the highest values from three rocks samples yielded 0.19 per cent zinc, 0.17 per cent lead and 7.2 grams per tonne silver (Assessment Report 9205).

In 1979-80, Canadian Occidental Petroleum Limited staked the Shar claims to cover the headwaters of streams with high values of lead, zinc, silver, uranium and molybdenum, detected during the 1978 Geological Survey of Canada - Uranium Reconnaissance Program. The survey data was released as Open File 561 on June 8, 1979. The claim staking was also to cover an area with favourable rock and soil geochemistry. Canadian Occidental conducted reconnaissance geological and geochemical surveys over the property, and also detailed geological and geochemical. Six heavy mineral, six stream sediment, 28 rock and 203 soil samples were collected. Coincident with the soil sampling, scintillometer eadings were recorded at each soil sample location, at 125-metre intervals.