The Stein showing is located along the shores of Agamemnon Bay of the Agamemnon Channel, at the northwestern end of the Sechelt Peninsula.

The earliest record of exploration in the Chalice prospect area was in 1913, when R. Durnsford Jr. drove the Stein tunnel. The showing was explored by a 21 metre long adit in 1913. In 1937, work was recorded on the Cambrian Chieftain occurrence (092GNW011). Additional mineralization was discovered at the Skookum (Chalice, 092GNW008), along the shoreline of Agamemnon Channel. Other showings, some containing massive sulphides, are reported along the shores of Agamemnon Channel. In 1982, Chalice Mining Inc. staked the ground covering the Chalice prospect. Since that time, Chalice Mining Inc. has conducted prospecting, geochemical and geophysical surveys, geological mapping, trenching and 572 metres of diamond drilling in 21 holes.

At the Stein showing, an adit at Agamemnon Bay on the north end of Sechelt Peninsula exposes a quartz healed rhyodacitic chert breccia within a roof pendant of volcanics and sediments of the Upper Triassic Karmutsen Formation, Vancouver Group. The roof pendant is hosted in the Jurassic to Cretaceous Coast Plutonic Complex. The breccia zone trends 120 to 130 degrees, similar to the trend of the roof pendant.

The quartz is mineralized with pyrite and marcasite. A grab sample of pyritic material taken two metres from the portal of the adit assayed 40.11 grams per tonne gold and 17.8 grams per tonne silver (Assessment Report 12641, page 25, Sample Ton).