The Kendry Creek deposit is located 5 kilometres east of Armstrong on the north side of Kendry Creek.

This area, east of the Okanagan Valley fault, is underlain by gneissic rocks of unknown age, metasedimentary rocks of the Proterozoic Silver Creek Formation and volcanic and sedimentary rocks of the Cambro-Ordovician Tsalkom Formation and the Upper Triassic to Lower Jurassic Nicola Group. All these units are probably in low-angle fault contact with each other. Intruding these rocks are Middle Jurassic granitic bodies. Pegmatite bodies of Mesozoic or Cenozoic age intrude the Silver Creek Formation.

A small marble lens within slates of the Tsalkom Formation has been a source of calcite for industrial use. The coarse-grained, grey marble is exposed over a 7 to 15-metre width and can be traced for a length of 50 metres, striking 075 degrees and dipping 75 degrees north. The individual beds are up to 0.5 metre thick with intercalated layers of calc-silicate minerals. Fine-grained crystalline pyrite is present is some areas. In 1944, sampling assayed 94.2 per cent calcite and 52.8 per cent CaO. Sampling in 1961 returned 53.1 per cent CaO, 0.30 per cent MgO, 0.40 per cent Fe2O3 and insolubles at 3.9 per cent (Minister of Mines Annual Report 1961, pp. 146, 148).

Earlier this century, the marble was quarried and burnt on site in a lime kiln. Later, Land Limes Ltd. operated a small quarry and crushing mill to produce pulverized limestone for agricultural purposes. In 1921, 308 tonnes of limestone were quarried.