The Monte Cristo (L.344) showing is located on the western shore of Phillips Arm, north of Fanny Bay and Hewitt Point.

The area is underlain by a persistent band, greater than 12 kilometres long, of stratified metavolcanic and metasedimentary rocks of the Upper Triassic Quatsino and Karmutsen formations (Vancouver Group). The band trends northwest and separates Jurassic to Cretaceous Coast Plutonic Complex rock of two different compositions, diorite and granodiorite.

Locally, at the Monte Cristo (L.344) showing shearing has developed within the package, parallel to bedding. Lithologies include biotite schist, quartzite, pyritic schist, wacke and marble. Chalcopyrite and pyrite occur within structurally controlled quartz veins.

The best assay was obtained in 1918 from the hanging wall or right-hand vein. The values were 6.4 per cent copper, 1.37 grams per tonne gold and 75.4 grams per tonne silver. A bulk sample was sent to the Tacoma smelter in 1916 and averaged 2.7 per cent copper (Minister of Mines Annual Report 1918, page 274).

The area was originally explored in the late 1890’s in conjunction with the nearby Doratha Morton (MINFILE 092K 023) mine. Numerous pits and shafts were completed in the area during the early 1900’s. In 1981, Long Lac Mineral Exploration completed a program of rock and soil sampling, geological mapping and a 14 line-kilometre ground magnetic survey on the area as the Fanny claims. In 1983, Bute Joint Venture completed a program of rock and soil sampling, geological mapping and ground magnetic and electromagnetic surveys on the area as the Koop and Strider claim groups. The area was prospected as the Cordero property in 1991 and 1992 by Ripple Creek Resources. In 2008, Cuda Capital completed a 561.4 line-kilometre airborne magnetic survey on the area.