The Apex occurrence, a past producer, is located 2 kilometres east of New Denver, British Columbia and 250 metres west of the former Mountain Chief mine (082FNW177).

Work on the Apex claim was confined to a quartz vein striking 070 degrees and dipping 40 degrees to the south. The vein was intersected at 148 metres from the portal of a 172-metre long crosscut. The vein was worked at this level and a second level, 26 metres vertically above the crosscut. Historically, the Apex occurrence has been under lease to the same operators as those of the Mountain Chief.

The Apex occurrence is underlain by argillaceous and calcareous sediments, slate and limestone of the Triassic Slocan Group. These strata have a general strike of 040 degrees and dip 45 degrees southwest and are intruded by large porphyry dikes and a porphyritic granite stock.

Mineralization consisted of blebs and disseminations of argentiferous galena and sphalerite, and lesser chalcocite hosted in a quartz vein and brecciated wallrock. Galena contains blebs of native silver and tetrahedrite visible with the naked eye. The maximum width of the vein is 60 to 90 centimetres.

Production records for the Apex occurrence show 520,446 grams of silver, 466 grams of gold and 4403 kilograms of lead recovered from 154 tonnes of ore, mined intermittently between 1912 and 1925.