The Cornucopia occurrence is located on the eastern flank of Mount Richards, approximately 2.5 kilometres south west of Crofton.

The area is underlain by a belt of schists, originally volcanics, of the Upper Devonian McLaughlin Ridge Formation, Sicker Group. Intruding the country rocks is quartz feldspar porphyry of the Late Devonian Saltspring Intrusive Suite (formerly the Saltspring Intrusions).

The belt is very much sheared and fissured with some of the fissures filled with quartz carrying copper minerals.

Around 1917, a prospect hole was sunk 3.6 metres deep, 3 metres long and 2.4 metres wide. A sample taken from the dump assayed 2.1 per cent copper, 27.43 grams per tonne silver and a trace of gold (Minister of Mines Annual Report 1917, page 269). About 60 metres west of the prospect hole there is a short adit driven in schist and quartz. About 120 metres west of the adit is an extensive outcropping of quartz carrying "low values".

Twenty-three tonnes of ore were produced from the Cornucopia deposit in 1960. From this production, 1,058 grams of gold and 93 grams of silver were recovered.

In 1970, the area was explored as the Sirius claims by Canpac Minerals. In 1986 and 1987, the area was explored as the PF claims. Programs of geological mapping, prospecting and geochemical sampling were completed at this time.