The Catherine occurrence is located 6.5 kilometres south- southwest of Nelson. The Catherine Crown Grant was originally staked in 1902. Workings consist of a trench and three short adits.
The area is underlain by augite basalt flows, flow breccias and subvolcanic intrusions of the Lower Jurassic Elise Formation (Unit Je1), Rossland Group (Open File 1991-16). These are intruded by biotite granodiorite of the Late to Middle Jurassic Nelson Intrusions. The granodiorite forms a small stock with associated sills and late stage quartz veins.
The Catherine showing consists of one or more relatively flat lying quartz veins hosted in the granitic intrusive. Mineralization consists of galena, sphalerite, pyrite, chalcopyrite and pyrrhotite. The setting is similar to that of the Perrier mine (082FSW208), 800 metres to the west. The veins are 0.10 to 0.40 metre wide with local pinching and swelling. Vein material, often fractured and limonitic is composite with lenses or rafts of granite separating the quartz. Granitic wallrock alteration comprises weak to moderate sericitization locally accompanied by minor pyritization.
The original showing or Catherine vein was reported as being 1.2 to 1.8 metres wide, exposed by stripping for about 30 metres, northwest striking and about 30 to 35 degrees northeast dipping. Mineralization consists of pyrite, galena and free gold.
In 1983, the highest assay from the old workings was from a sample taken at the portal of adit #2 across 0.15 metres of quartz with galena, pyrite and sphalerite. This sample assayed 41.48 grams per tonne gold and 93.24 grams per tonne silver (Assessment Report 11720).
Recorded production, over the period 1928 to 1941, totalled 135 tonnes, yielding 5599 grams of gold, 15240 grams of silver, 3717 kilograms of lead and 1969 kilograms of zinc.