The Surprise Mountain area is underlain by rhythmically layered amygdaloidal, feldspar porphyritic and spherulitic basalt flows of the Upper Triassic Karmutsen Formation (Vancouver Group). Mineral- ized quartz and quartz-carbonate veins with variable sulphide content are associated with narrow, steeply dipping shear zones.

The Silver King occurrence is underlain by amygdaloidal basalt of the Karmutsen Formation. A sample from an adit assayed 1.19 grams per tonne gold (Assessment Report 18672). The showing is inferred to be a shear-hosted, pyritic quartz vein due to the proximity of numerous similar occurrences in the same geologic setting (Frances - 092F 528, Thyhee - 092F 527).