The Mascot (L.1344) occurrence is located on the southeastern side of Columbia Kootenay Mountain at an elevation of approximately 1050 metres.

Regionally, the area is underlain by the Lower Jurassic Elise Formation (Rossland Group) volcanic breccia, conglomerate and sandstone sequence, which dips uniformly at moderate angles to the west. Primary sedimentary structures indicate the beds face west and only small north-trending faults cause minor offsets. The Rossland sill of the Elise Formation forms an irregular mass of augite porphyry in the thin-bedded sedimentary and massive volcanic breccias and conglomerates. The sill is difficult to distinguish from the thermally metamorphosed Rossland Group rocks.

The Rossland Group rocks are intruded to the north by granodiorite of the Middle Jurassic Trail Pluton and to the south by quartz monzonite of the Early Jurassic Rossland Plutonic Suite, which is comprised of a biotite-hornblende-augite monzonite stock. The contact with the monzonite is gradational and grades northward into the volcanic conglomerate over a distance of 300 metres. A zone of thermal metamorphism has bleached the well-indurated hornfels of the Rossland Group, which contains pyroxene and garnet. A swarm of diorite dikes crosscut both the monzonite and Rossland Group rocks. Also, the Middle Eocene Coryell syenite intrudes the Rossland Group rocks to the south.

Locally, the Mascot (Main, Middle, North and Kapai) veins are part of the Columbia-Kootenay (MINFILE 082FSW151) main vein system, which forms a continuous well-defined fracture system on a regional scale. The main vein system trends 070 degrees for a strike length in excess of 1.0 kilometre, consisting of mineralized fractures and faults that dip steeply north.

There are three tunnels and several prospect shafts on the claim. Tunnel No.1 discloses approximately 0.5 metres of solid ore composed mainly of massive magnetite and chalcopyrite. In tunnel No.2, mineralization occurs along a fissure or fault contact between the hornfelsed Rossland volcanics and a dioritic dike. Massive pyrrhotite shows pronounced spheroid weathering. The vein is 0.5 metres wide and hosts solid sulphides in quartz gangue. The hostrock is crosscut by several syenite dikes associated with the Eocene Coryell Intrusion. The dikes host minor disseminated chalcopyrite and exhibit porcelaneous-chilled margins. In tunnel No.3 the Rossland rocks dip 60 degrees west.

In 1938, surface sampling of the Main, Middle and Kapai veins is reported to have averaged 4.1, 8.6 and 10.3 grams per tonne gold, respectively, with a total of approximately 11 612 tonnes of probable ore (above the No. 3 level) grading 6.6 grams per tonne gold from the Main vein with an additional 726 tonnes grading 14.7 grams per tonne gold from the Kapai vein (Assessment Report 15432).

In 1986, a chip sample (83143C) of silicified augite porphyry with quartz veins hosting pyrrhotite, pyrite, arsenopyrite and chalcopyrite assayed 1.8 grams per tonne gold over 1.6 metres, whereas a grab sample (982E) of semi-massive pyrrhotite from the Main vein yielded 11.2 grams per tonne gold (Assessment Report 15432). Also at this time, a diamond drill hole (G86.6) intercepted an augite porphyry and hornblende granodiorite with minor siltstone units hosting massive pyrrhotite lenses and/or veins up to 15 centimetres wide and yielded 5.5 grams per tonne gold over 1.5 metres (Assessment Report 15432).

In 1989, diamond drilling on the North Mascot vein/shear zone yielded intercepts up to 1.4 grams per tonne gold over 0.7 metre in hole 89-123 and 13.1 grams per tonne gold over 0.4 metre in hole 89-124 (Assessment Report 20158).

Another mineralized zone is reported approximately 500 metres east-northeast on the Antelope No.30 Fraction claim, where two former trenches and a shaft expose a fine-grained granodiorite with biotite. Mineralization comprises disseminated pyrite with minor chalcopyrite and blebs and/or bands of magnetite. In 1989, a sample (T005) of tailings from the shaft yielded 0.13 gram per tonne gold (Assessment Report 19053).

The area has been explored in conjunction with the nearby Columbia-Kootenay (MINFILE 082FSW151) occurrence since the late 1800s, with the Mascot (L.1344) claim being staked in 1894 and Crown granted in 1896. During the late 1890s and early 1900s, three tunnels and several shafts were developed for a total of approximately 1067 metres of underground development, primarily (all but 15 metres) performed on the Main vein. This work was reportedly designed to develop approximately 11 612 tonnes of ore grading 6.2 grams per tonne gold above the No. 3 adit level.

During 1982 through 1986, Gallant Gold Mines Ltd. completed programs of rock and silt sampling, geological mapping, ground geophysical surveys and seven diamond drill holes, totalling 694.0 metres, on the area as the Georgia property. In 1989, Antelope Resources Inc. drilled three diamond drill holes, totalling 276.8 metres, on the Mascot (L.1344) claim and completed a minor program of prospecting and sampling on the Antelope No. 30 Fraction claim to the east-northeast.

In 2009, a 6.4 line-kilometre ground electromagnetic (VLF) survey was completed on the area as the Crown of Eleanor claim. In 2012, a further 4.0 line-kilometre ground electromagnetic (VLF-EM) survey was conducted. In 2018, Currie Rose Resources Inc. completed a 164.8 line-kilometre airborne magnetic survey on the area.