The Maxine showing occurs on the northwestern contact of a small satellite stock of the Late Triassic-Early Jurassic Iron Mask batholith, located on the north and south shore of Kamloops Lake. The stock intrudes intermediate volcanic rocks (Eastern Volcanic facies) of the Upper Triassic Nicola Group, and is overlain by Eocene volcanic rocks of the Kamloops Group.
Intermediate volcanic rocks consisting of mainly andesite tuffs and flows of the Nicola Group are very highly altered to chlorite, epidote, calcite, and occasionally secondary albite and potassium feldspar. The Cherry Creek unit syenites of the Iron Mask batholith occupy the southwestern portion of the showing area. Small outliers of the Kamloops Group volcanics are found in the northern parts. Major northwest to westerly trending structures are abundant, the main structure apparently hosting the Maxine mine. This structure can be traced to the east-southeast to the Frederick zone (092INE031) and across Kamloops Lake to the main Afton orebody (092INE023). Secondary and later north to northeasterly trending structures have also been identified.
Mineralization at the Maxine mine is associated with the northwesterly trending structures. The hostrocks are Nicola volcanics, however, but may in fact be small apothesis dikes and sills of the batholith. Structures hosting mineralization have been highly altered, brecciated and sheared. Mineralization comprises sparsely disseminated pyrite, chalcopyrite and magnetite with bornite and chalcocite occurring in narrow and widely separated shears. The shear zones often contain calcite, minor quartz, malachite, azurite and hematite and vary from centimetres up to 1.8 metres in width. Native copper has also been identified in the wallrock near the shears. In 1998, a sample of mineralized rock assayed 4.1 per cent copper and 74.4 grams per tonne silver (Assessment Report 25539).
Mineralization was exposed by the Canadian Northern Railway Company in blasting for a roadbed through the ranch owned by C.S. Fredericks. Other showings, at higher elevations about 762 metres from the lake shore, were explored for a number of years by Mr. Fredericks. In 1910, the workings on the 6 claim property consisted of opencuts and a crosscut adit. Exploration work was carried on into 1916 and included opencuts, winzes and 3 adits totalling over 79 metres of underground workings. A small amount of ore was shipped by Mr. Fredericks in 1917 and 1919. About 30 tonnes of high-grade copper ore were produced from the Maxine mine from three adit levels. In the late 1930s or early 1940s, the property was restaked, in part at least, as the North Star group of claims, owned by Messrs. Smith, Pelezon and Moffat, of Kamloops. No developement work was reported at that time. In 1969, Royal Canadian Ventures Ltd. conducted about 8 kilometres of magnetic, VLF-EM and geochemical soil surveys and completed geological mapping. In 1972, Primac Exploration Services performed line cutting. In 1976, three AQ diamond-drill holes totalling 488 metres were put down by Rich Hill Mines Ltd. In 1983, Pecos Resources Ltd. conducted a ground magnetometer survey. In 1992, Eureka Resources Inc. completed geological mapping, 11 kilometres of ground magnetometer survey, and a soil (688) and rock (31) sampling survey. In 1998, work consisting of detailed soil (55) and rock chip (11) sampling and geological mapping was completed by Eureka Resources Inc.
