The prospect occurs within the southern part of a belt of rocks known as the Buttle Lake Uplift. The belt is bounded on the east by Upper Triassic Karmutsen Formation volcanics (Vancouver Group) and on the west by Jurassic Island Intrusions.

The geology of the uplift has recently undergone revision and the stratigraphy has been reassigned to several new formations of a redefined Sicker Group and a new Buttle Lake Group (formerly the upper part of the Sicker Group), (Juras, 1987; Massey, personal communication, 1990). See the H-W occurrence (092F 330) for a summary of this revised interpretation.

The occurrence is located in an area that was originally mapped as Middle to Upper Paleozoic Sicker Group volcanics, which belong mainly to the unrevised Myra Formation of Muller (Geological Survey of Canada Paper 79-30). The rocks underlying the property consist of felsic to intermediate flows, tuffs and agglomerates which are overlain to the east by Buttle Lake Group, Azure Lake Formation limestone, lesser chert and argillite.

The Hughes zone consists of three separate veins arranged en echelon plus numerous smaller veins and stringers interconnecting or horsetailing off the main vein. The zone has been exposed intermittently for 380 metres. The overall zone trends easterly and dips steeply to the north with vein widths varying from millimetres to less than a metre. The veins consist of quartz with siderite and calcite. The only sulphides observed in these strongly oxidized veins are arsenopyrite and pyrargyrite. One sample taken across 13 centimetres assayed 13.03 grams per tonne gold and 103.54 grams per tonne silver (Assessment Report 1884).