The quartzite quarry on Lot 4636 is located 1 kilometre north of Porcupine Creek, 15 kilometres northeast of Salmo.
Thinly-bedded micaceous quartzite of the Lower Cambrian Quartzite Range Formation (correlative with rocks of the Lower Cambrian Hamill Group) is being quarried for flagstone by Porcupine Mines Ltd. Individual quartzite beds display various colours including beige, brown and green. The stone is split along micaceous partings to produce slabs for building facings and a variety of other architectural and decorative uses.