The exact location of the Lucky Date (Lead Mountain) showings is not known. Both the Lucky Date and, later, Lead Mountain claim was reported to lie near the head of the north fork (Roosevelt Creek) of Bitter Creek. The showings are assumed to be about 1 kilometre south-southeast of the peak of Mount Gladstone.

The area is underlain by Jurassic Hazelton Group rocks. The mineralization occurs near the northwest trending contact between volcanics of the Lower Jurassic Unuk River Formation and sediments of the Middle Jurassic Salmon River Formation. The volcanics predominantly consist of massive and fragmental volcanics. The unconformably overlying sediments comprise argillite, greywacke and conglomerate. Several erratically mineralized shear zones and quartz veins are reported in the area.

The I.X.L. quartz vein is irregularly mineralized with galena, sphalerite and tetrahedrite. The vein trends north, dips 40 degrees west and lies between porphyritic andesite on the hangingwall and slate on the footwall. In an opencut, at 1387 metres elevation, the vein is 0.76 metre wide and can be traced for 15 metres. Along strike the vein abruptly passes into a zone of narrow stringers. A channel sample collected in 1946(?) assayed 0.34 gram per tonne gold, 185.1 grams per tonne silver, 0.15 per cent copper, 1.6 per cent lead, 6.9 per cent zinc and 0.13 per cent cadmium across a width of 0.76 metre (Minister of Mines Annual Report 1946, page 80).

A 0.9 to 3.7 metre wide quartz-carbonate breccia zone occurs about 460 metres east of the I.X.L. vein, at an elevation of 1433 metres. The zone follows the contact, striking 075 degrees and dipping 45 degrees north, between volcanics and argillite. The zone is sparsely mineralized with galena and sphalerite.

The Goat vein, comprising a 0.1 to 0.8 metre wide quartz stringer vein, is located elsewhere on the property (location unknown). The vein extends over a length of 240 metres between elevations of 1067 and 1189 metres. The quartz contains disseminated to semimassive pyrite, galena and sphalerite. A channel sample, taken in 1946(?) from an adit at 1067 metres elevation, assayed nil gold, 75.4 grams per tonne silver, 0.07 per cent copper, 2.90 per cent lead, 3.9 per cent zinc and 0.05 per cent cadmium across a width of 0.71 metre (Minister of Mines Annual Report 1946, page 80).

The Lucky Date claim group was owned by McInnes, Younkin and McFadden in 1928. During 1930-34, a 17 metre long crosscut tunnel, opencutting and stripping were reported. Showings of both quartz-pyrite-tetrahedrite and quartz-galena-sphalerite-pyrite were reported at different locations on the property. The main showing was described as a mineralized, fractured and sheared dike (Minister of Mines Annual Report 1930). In 1935, Hepson owned the Lucky Date claims. The claims subsequently lapsed and no further work was reported until 1945 when the area was restaked as the Lead Mountain claims, owned by McFadden and Bunn. Minor work was reported in 1946. No further work has been done on the showings.

During 2005 through 2010, Auramex completed programs of prospecting, geological mapping, geochemical sampling and airborne geophysical surveys on the area as the Bear River-Surprise Creek property.