The Amy occurrence is about 5 kilometres north of Tootsee Lake, approximately 130 kilometres west-southwest of Watson Lake, Yukon, in northwestern British Columbia. The property is accessible by four-wheel drive vehicle from Mile 701 on the Alaska Highway. From Mile 701 a road leads south, partly along the Tootsee River to the Midway deposit (104O 038) at a distance of 30 kilometres. A branch road forking off the Midway road, some 5 kilometres north of the deposit, leads 8 kilometres southwesterly to the Amy property.
At the showing, a galena and sphalerite body formed by replacement mineralization in concordant zones of tightly folded Cambrian-Ordovician Kechika Group metasediments. Sulphide zones averaging 1.8 metres thick occur primarily in marble units in a phyllite-calc-silicate, hornfels-quartzite package. Mineralization, consisting of sphalerite, galena, pyrite, arsenopyrite and freibergite, can be traced along strike for 170 metres. Smaller pyrrhotite-rich zones also occur. The Kechika sequence is cut by several late-stage muscovite tourmaline granite dikes associated with Early Cretaceous Cassiar batholith quartz monzonitic rocks. One of these dikes gives a potassium-argon age of 97.3 +/- 3.4 million years (Fieldwork 1987, pages 353-362).
Measured and indicated reserves are 72,431 tonnes grading 366.7 grams per tonne silver, 6.03 per cent zinc, and 2.84 per cent lead (Statement of Material Facts 88-81, Morbaco Resources Ltd.).
In 1962, the property was acquired by the Rancheria Mining Company Ltd. which from 1963 to 1965 conducted a significant amount of exploration including 24 diamond-drill holes and an adit 254 metres in length. In 1966 and 1967, a limited amount of work on the property was carried out. In 1968, Irwin Engineering attempted a short percussion drilling program on the property and the claims were allowed to lapse. From 1971 to 1973, Fosco Mining Ltd. completed 61 metres of drifting and 427 metres of cross-cutting to
explore the mineralized zone on the 1280-metre level. In 1977, the Cub claims (104O 042) adjoining the Amy deposit were located 990 metres north. Dupont of Canada conducted geological and geochemical surveys on the Cub property in 1979, primarily to evaluate skarn zones with values in tungsten and molybdenum. In 1981 and 1982, Morbaco Mines Ltd., a successor to Fosco Mining Ltd., optioned the Cub property and conducted geochemical surveys and limited bulldozer trenching. In 1984, Sovereign Metals Corporation carried out exploration on the Cub property to test for potential extensions to the Amy deposit and to locate the source of high-grade float. Eight diamond-drill holes totaling 439 metres were completed. In 1985, Reg Resources carried out an exploration program including an electromagnetic survey and diamond drilling (3 holes totalling 358 metres) on the Amy property.
In 1995, on behalf of owner W.R. Gilmour, a program of heavy mineral stream sediment sampling was carried out on the property to check for possible extensions of known mineralization. In 1999, on behalf of owner W.R. Gilmour, old trenches on the property east and west of underground workings were sampled (38 soil, 3 rock) as an aid in evaluating previously reported geochemical data.
