The Leona occurrence is located at 930 metres elevation, 350 metres south-southeast of the Crown Point occurrence (082ESW064). It lies on ground previously known as the Enio (Lot 2852) Crown-granted claim. Since 1938 the ground hosting the Leona occurrence has been owned by owners of the Crown Point (Lot 2448) Crown grant and other claims. The Enio claim was part of the former Crown Point group which consisted of the Crown Point (Lot 2448), Crown Point Fraction (Lot 2449), Triangle Fraction, Sunnyside (Lot 1440), No. 2 (Lot 2447), No. 3 (Lot 2445) and Enio (Lot 2852). The Crown Point and Sunnyside are presently Reverted Crown grants; the remaining are of unknown status.
The early exploration history of the Leona occurrence is unknown, but most likely was discovered around the same time as the Crown Point occurrence. In 1981, J. Kucherhan discovered the old shafts and trenches on the Leona occurrence. These old workings were developed on two quartz veins striking 090 to 135 degrees and dipping 45 to 80 degrees.
The Leona occurrence lies within an inlier of metavolcanic and metasedimentary rocks of the Permian to Carboniferous Anarchist Group. Greenstone, locally tuffaceous and serpentinized, is the predominant host lithology. The greenstone is folded, faulted and has a variable northwest to north foliation. Argillite and quartzite, locally cherty, minor limestone and magnesite with mariposite and gneiss comprise the remaining hostrocks of the Anarchist Group. Greenstones are propylitic altered, consisting primarily of chlorite and calcite. Minor silicification is also present. To the east is a small stock of granodiorite and microdiorite of the Cretaceous Okanagan batholith. Eocene volcanic rocks of the Penticton Group occur to the north and west. These include feldspar porphyries and aplite dikes. The contact between these units is faulted.
Mineralization on the Leona claim consists of two quartz veins striking 090 to 135 degrees and dipping 45 to 70 degrees. Mineralization consists of stringers of galena and disseminated pyrite in these veins. In shaft 1, the quartz vein was 70 centimetres wide hosted in sheared greenstone. The vein has been offset by a fault striking about 045 degrees and dipping 80 degrees to the southeast. In shaft 3, a 15 centimetre wide quartz vein was intersected. The vein strikes east. In the trench, the quartz vein was up to 40 centimetres wide and hosted in a 75 centimetre wide shear zone.
The results of rock geochemistry, in 1981, were as follows:. sample 017408 yielded 0.89 gram per tonne gold, 185 grams per tonne silver, 14.30 per cent lead and 0.03 per cent zinc (Assessment Report 9909); sample 017409 yielded 1.37 grams per tonne gold, 102 grams per tonne silver, 5.15 per cent lead and 0.08 per cent zinc (Assessment Report 9909); sample 017410 yielded 0.75 gram per tonne gold, 256 grams per tonne silver, 16.72 per cent lead and 0.05 per cent zinc (Assessment Report 9909). The samples were from shafts 1, 2 and 3, respectively. Trench sample 017411 yielded similar results.
