The GL2 EP occurrence is in an east trending valley approximately 2.7 kilometres west-southwest of the south end of Moosehorn Lake.

The occurrence 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 Lower 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.

Locally, granodiorite to quartz monzonite intrusives, primarily plagioclase porphyry, and epidotized mafic volcanics contain quartz-carbonate veins with variable amounts of galena, chalcopyrite and pyrite with malachite staining.

In 2018, grab samples (GLVB18-31R) of epithermal-style quartz-carbonate veins yielded up to 18.4 grams per tonne gold, 3180 grams per tonne silver and 0.118 per cent lead, while grab samples (GLLG18-003R) porphyry-style veins yielded up to 2.1 per cent copper and 12.7 grams per tonne silver (Tupper, D.W. (2019-08-12): NI 43-101 Technical Report on the Golden Lion Property).

The area has been historically explored in conjunction with the nearby Golden Lion (MINFILE 094E 077) and Har (MINFILE 094E 053) occurrences and a completed regional exploration history can be found there.