The E-070 occurrence is located approximately 650 metres north-northeast of the northwestern end of Frances (Bay) Lake.

Regionally, the area is underlain by northwest-trending belts of basaltic volcanics and carbonate sedimentary rocks of the Upper Triassic Karmutsen and Quatsino formations (Vancouver Group) and mafic volcanics and sediments of the Upper Triassic to Lower Jurassic Bonanza Group (Holberg volcanic unit, Nahwitti River wacke and Parson Bay Formation). These volcanic and sedimentary rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, as identified by drilling, chlorite-epidote–altered andesite ash and lapilli tuffs host disseminations and veins of sphalerite with pyrite-calcite-zeolite, whereas underlying garnet skarn horizons, totalling up to 20.3 metres thick, host pyrite and minor disseminated chalcopyrite.

In 1986, drillhole E-070 intercepted mineralized tuffs over 55.0 metres with samples yielding from 0.9 to 1.9 per cent zinc and 0.5 to 1.5 grams per tonne silver, whereas samples of skarn yielded from 0.2 to 0.6 per cent copper and 1.2 to 5.5 grams per tonne silver (Assessment Report 15707).

In 1965 and 1966, BHP-Utah Mines completed programs of geological mapping, soil sampling and ground geophysical programs on the area as the Bay and Cove claims. In 1983 and 1986, BHP-Utah Mines completed programs of soil sampling, geological mapping, ground geophysical surveys and six diamond drill holes, totalling 3127.0 metres, on the area. In 1994, BHP Minerals Canada Ltd. completed 18 diamond drill holes, totalling 1783.1 metres, on the area.

In 2016, the area was prospected by Tech-X Resources Ltd.