The Josie group, consisting of the Josi, Poorman, No. 1, Annie and Annie Fraction claims, lies west of and adjoining the Centre Star property on the northwestern edge of the City of Rossland. The Josie claim was apparently located by, R.E. Lemon in 1890 and Crown-granted to F.C. Loring in 1895. The British American Corporation Limited purchased the Josie and a number of adjoining claims in 1896 and development work was carried on for several years. The property was acquired in 1900 by Le Roi No. 2, Limited, an English company. Mining operations were carried out on 10 levels from a 396-metre deep shaft, and in several adits. Operations were continuous until January 1922 when the mine closed. The Consolidated Mining & Smelting Company of Canada Ltd., owner of the adjoining Centre Star group, purchased the property in 1923 and operations were carried on until 1928 when the mine was closed. Lessees worked the property from 1932 until June 1942. The Josie showing is part of the "Main vein" system which forms a continuous well-defined fracture system, on a regional scale, which strikes 070 degrees for a strike length in excess of 1 kilometre. The system dips steeply north; the Josie vein system dips 75 degrees north. Refer to the Le Roi deposit (082FSW093) for further details of the Rossland mining camp and the Main vein-type ore deposit. The Josie vein system is hosted by the Early Jurassic Rossland monzonite and augite porphyry of the Lower Jurassic Elise Formation (Rossland Group), known as the Rossland sill. The Rossland monzonite is an east-trending stock of biotite-hornblende-augite monzonite. Tertiary lamprophyre dykes, trending northwards, crosscut the monzonite and sill. The Josie dyke averages more than 20 metres in thickness and appears to control the concentrations of copper and copper-gold ore. The ore shoots lie along portions of the main fissure and end abruptly against dykes or cross structures. The Josie vein system is comprised of three main veins, the Hamilton and the North Annie and South Annie (082FSW148) which strike westerly and dip steeply north. Sulphide mineralization consists of the replacement of wallrock along well-defined fractures and the infilling of fractures and faults with pyrrhotite and chalcopyrite. The gangue consists mainly of altered wallrock with minor lenses of quartz and calcite. Minor pyrite occurs as crystals in the pyrrhotite and as disseminations in the host rock. Massive fine-grained sphalerite of a deep brownish colour was observed in small irregular veinlets and blebs from the 275-metre level of the Josie mine.

Although development of the Josie started around 1896, production records start in 1900. Between 1900 to 1922, 554,482 tonnes of ore were mined from the Josie systems. From this, a total of 9,344,182 grams gold, 15,110,710 grams silver and 7,776,067 kilograms copper were recovered.