The Fire 1 occurrence is located approximately 13.2 kilometres north-northwest of the Kemess South occurrence (094E 094) and 4.9 kilometres north-northwest of the northern end of Thutade Lake, south of the Firesteel River. The occurrence lies on the eastern edge of the Spatsizi Plateau at the southern end of the Toodoggone Gold Camp about 202 kilometres north-northwest of the community of Germansen Landing.

The showing is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions 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 Stuhini Group andesite flows and pyroclastic rocks. Stuhini volcanics have been intruded by the granodiorite to quartz monzonite Black Lake Suite of Early Jurassic age 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 Fire 1 showing is underlain by pale grey, massive, recrystallized, fossiliferous limestone of the Asitka Group and mafic volcanics of the Stuhini Group. Dark green mafic tuffs, lapilli tuffs and plagioclase porphyry flows comprise mafic volcanics. Greywacke, chert and volcaniclastic conglomerate are associated with the volcanics.

About 1.8 kilometres to the east of the Firesteel occurrence (094E 002), trenching has uncovered massive galena with a little sphalerite, pyrite and chalcopyrite in a steep dipping, 22.86-centimetre-wide zone in limestone (Assessment Report 14118). Other exposures to the south of this showing consists of quartz veins paralleling bedding in limestone, siliceous zones along tuffaceous horizons in limestone, and fissure veins. Exposures lie along both sides of a north trending limestone ridge, immediately west of Bren Creek.