The ISINTOK showing is located 3 kilometres south of Faulder and 8 kilometres west-southwest of Summerland.

The showing consists of several quartz veins hosted in granodiorite of the Jurassic Okanagan Intrusions. Mineralization consists of quartz with pyrite or siderite and tetrahedrite and traces of malachite. Molybdenum values have been recorded in assays but molybdenite has not been observed in samples.

In 1966, Sulmac Exploration Services Ltd. carried out geological mapping, prospecting and soil sampling for Forest Kerr Mines Ltd. They identified a weak copper soil geochemical anomaly. In 1970, a Penticton prospector brought the property to the attention of Cominco. He had carried out some minor blasting and one sample collected assayed 144 grams per tonne silver, 0.33 per cent copper and 0.12 per cent molybdenum (Assessment Report 7885). In 1979, Cominco staked the property, and undertook a small program of geological mapping and geochemistry to evaluate its molybdenum potential. They found that the granodiorite in this area contains high background values in molybdenum. Two quartz veins were analysed for silver, with assays of 9 and 16 grams silver per tonne respectively (Assessment Report 7885). The area blasted by the prospector in 1970 is believed to be located approximately 500 metres to the east and is included in this occurrence.