The Peak occurrence is located east of Finlay River and 6 kilometres due west of Giegerich Peak in the Omineca-Cassiar mountains about 275 kilometres north of Smithers.

The showing is at the southern end of the Toodoggone Gold Camp which lies within the eastern margin of the Intermontane Belt and is underlain by a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions. The Peak showing is situated within a Mesozoic volcanic arc assemblage bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. Takla volcanics have been intruded by plutons and other bodies of the Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The Peak showing is underlain by Toodoggone Formation volcanics near a contact with quartz monzonite to granodiorite of the Black Lake Suite. Toodoggone volcanics consist of pinkish, massive crystal ash tuff locally with trace to 2 per cent disseminated pyrite. Lesser arkosic sandstone, siltstone, conglomerate and epiclastic slide debris also comprise Toodoggone lithologies underlying the Peak showing. A kilometre to the north of the showing, bedding in this unit strikes 175 degrees and dips 20 degrees to the west. To the west, well jointed dacite lapilli tuffs and andesitic ash-flow tuffs also comprise Toodoggone volcanics.

Several limonitic gossans with limonite after pyrite and finely disseminated pyrite occur in the area. In 1988, a rock sample from one of these gossans analyzed 178.0 grams per tonne silver, 1.32 grams per tonne gold, 0.0622 per cent zinc, 0.0326 per cent lead, and 0.0023 per cent copper (Assessment Report 17454). A geophysical survey was conducted in 1988, consisting of airborne magnetic and Very Low Frequency electromagnetic surveys. The results of these surveys indicate further limonitic gossan zones, more extensive faulting, and a probable area of hydrothermal alteration.