The Lead showing consists of the Mammoth and Superior claims, later a part of the Altroy Group (Packrat grid), and is located on a tributary of Lavington Creek at an elevation of about 1870 metres. The showing was originally explored in the 1920's and 1930's before re-newed exploration in 1990's. In 1995, a program of geological mapping, reconnaissance VLF-EM and magnetometer and geochemical surveys were completed.

The area is mainly underlain by sediments of the Proterozoic Creston and Kitchener Formations. These slightly metamorphosed rocks consist of an interbedded sequence of green and grey banded argillite, blocky, light green talc-silicate and fine-grained grey marble. Foliation appears to parallel bedding and the rocks strike northeasterly with steep, variable dips. Microfolding is common. To the west quartz-monzonite of the Cretaceous White Creek Formation has intruded the sediments. The intrusive is generally pinkish-white and porphyritic, with feldspar phenocrysts up to 4 centimetres long in a medium-grained groundmass.

Locally, fine grained felsic dykes, presumably associated with the White Creek intrusion, cut the metasediments. Two small outcrops of a dark green, chloritic andesite have been mapped.

During the period, 1926 through 1934, three adits were driven along a zone of veinlets and stringers containing galena and pyrite hosted by the intrusive. The sulphide zone is sheared and silicified.

In 1993, sampling of quartz sulphide veins returned values up to 2.6 grams per tonne gold, 396.3 grams per tonne silver, 0.203 per cent copper, 20.34 per cent lead and 28.50 per cent zinc (Assessment Report 23409).