The Helga occurrence is located on the western side of Lens Creek, approximately 1.3 kilometres south west of Dimple Lake.

The area is underlain by massive volcanic rocks, dominantly basalts and andesites, of the Upper Triassic Karmutsen Formation, Vancouver Group. Overlying these are massive limestone of the Upper Triassic Quatsino Formation, Vancouver Group. The strata has been cut by several stocks and dyke/sill swarms ranging in composition from diorite to aplite and dacite, sometimes feldspar phyric. These rocks are bounded to the north, east and south by a large mass of intrusive rock of the Early to Middle Jurassic Island Plutonic Suite.

Four small fault-bound skarns were discovered in 1987 in the northeast corner of the Helga claim. The only significant occurrence of the four is comprised of a lens or bed of garnet-magnetite skarn carrying approximately 20 to 40 per cent magnetite with local blebs of chalcopyrite. This skarn is in fault contact with an altered amygdaloidal unit that is thought to be basalt. The showing disappears beneath overburden but has an estimated length of 10 metres.

Minor disseminated chalcopyrite occurrences were observed at a few localities and are generally associated with sheared, altered volcanics or hornfelsic to feldspar porphyry units.

In 1977, Western Mines Limited completed a program of geochemical sampling, geological mapping and a ground magnetometer survey on the area. In 1984 through 1988, Beau Pre Explorations Ltd. completed a program of geochemical sampling and prospecting on the area. A grab sample of massive magnetite assayed low in gold and silver with 0.134 per cent copper (Assessment Report 15295).

In 1990, Breakwater Resources completed a program of soil sampling on the area as the Doc 1-2 claims (Doe property). In 2005 through 2009, Le Baron Prospecting completed programs of geochemical sampling and prospecting on the area as the Doe Lake Project.