The Sharon quartzite quarry is located on the north side of Porcupine Creek, 11 kilometres northeast of Salmo.
The quarry is developed in a thick unnamed Paleozoic sequence of micaceous quartzite, schist, argillite, slate, phyllite and limestone partly equivalent to the Milford Group.
Individual quartzite beds display various colours including beige, brown and green. The stone is split along micaceous partings to produce slabs that are sold locally for building facings and a variety of other architectural and decorative uses. The quartzite is being quarried intermittently for flagstone by Porcupine Mines Ltd. of Salmo.