The Crown occurrence is located north of Long Creek, approximately 1 kilometre east of the Robertson River.

The area is underlain by Lower Jurassic Bonanza Group volcanics consisting of lava, tuff and breccia of mainly basaltic to rhyolitic composition. It contains occasional interbeds and sequences of marine argillite and greywacke. A stock of the Early to Middle Jurassic Island Plutonic Suite lies to the southwest of the showings. The volcanics have been intruded by dykes and irregularly shaped bodies of granodiorite, granite porphyry and diorite porphyry. Limestone, reported to occur as lenses and roof pendants in both the volcanics and the intrusive, is probably related to the Quatsino Formation, Vancouver Group.

According to Stevenson (1937) mineralization consists of irregular areas of abundant magnetite and lesser amounts of chalcopyrite in a lime-silicate gangue that consists largely of pyroxene, diopside, andradite, epidote and a little actinolite. What little unaltered rock is left in the occurrence area is a dioritic greenstone containing varying amounts of diopside. Other reports indicate that mineralized areas on the Crown occurrence consist of pyrrhotite and chalcopyrite (Minister of Mines Annual Report 1930).

In the 1930's, American Smelting and Refning Co. completed extensive stripping on the property , exposing, at one location, a mineralized area with a width of about 18 metres. Two samples taken at the showings assayed 8.22 grams per tonne gold, 0.9 per cent copper, 19.1 per cent iron and a trace of silver over 5.5 metres; and 0.34 grams per tonne gold, 1.2 per cent copper, 17.1 per cent iron and a trace of silver over 12 metres (Sketch of the Workings on the Crown Group (showing assays), 1938).

In 1956, Rosea Copper Mines completed a ground magnetometer survey on the Stella 1-4 claims. In 2006, the area was staked as the Stag claim and a program of geochemical sampling and prospecting was completed.