At the Sylvester showing, a series of gold- and copper-bearing samples in strongly fractured outcrop occur within Upper Triassic Stuhini Group volcanics, augite- and feldspar- phyric flows and feldspar-phyric agglomeratic tuffs, which have been commonly epidotized within a chloritic groundmass.

All mineralization is hosted within discontinuous and often diffuse listwanite altered zones. This alteration consists of calcite and ankerite, which may contain quartz stringers or mariposite. Mineralization consists of disseminated pyrite, locally with specularite and up to 2 per cent disseminated chalcopyrite. Sample 32748, grading 1.37 grams per tonne gold was a grab sample taken from a three metre wide listwanite altered zone with quartz veining, that strikes 340 degrees/60 northeast degrees (Assessment Report 21061). Weathering of the structure, which is exposed for 25 metres, varies along strike from a porous oxidized ferricrete to frothy quartz with 20 per cent pyrite and, subsequently, to less mineralized wallrock. Several samples were taken in 1988 by Cathedral Gold Corp from the same structure and none of these were anomalous in gold (Assessment Report 18555). A grab sample (459546), taken in 1989 by Gigi Resources, which yielded an assay of 2.47 grams per tonne gold and 2.96 per cent copper, appears to have been sampled from subcrop (Assessment Report 19783). A grab sample of a carbonate-cemented listwanite breccia with pyrite and chalcopyrite; sample 28302, grading 1.37 grams per tonne gold with 0.62 per cent copper, appears to be the source of this sample (Assessment Report 21061). However this outcrop, located 350 metres east and upstream from sample 32748, is limited in exposure.

Refer to Trophy (Ptarmigan) (104G 053) for related details and a common work history.