The Bookhout occurrence is located on the northern side of a small un-named lake in the head waters of Broohout Creek, approximately 1.3 kilometres south of Great Central Lake.

The area is underlain by basalt of the Upper Triassic Karmutsen Formation (Vancouver Group) crosscut by a number of northwest trending granodiorite or quartz diorite dikes. The basalt hosts small quartz veins which occur in a silicified and altered shear zone that appears to strike 320 degrees and dip 80 degrees southwest.

Mineralization consists of pyrite and chalcopyrite. A rock sample assayed 1.45 per cent copper and 9.94 grams per tonne silver (Property File (092F 230, Ark)-Report by J.A. Mitchell).

In the same general area fractures in basalt striking 065 degrees and 305 degrees and dipping steeply north contain chalcopyrite.

Approximately 900 metres east of this mineralization, a narrow silicified and carbonate altered shear in basalt hosts chalcopyrite and 100 metres higher in elevation chalcopyrite also occurs in streaks and weak disseminations.

In 1971, Great Central Mines completed a program of soil sampling on the HM claims. In 1986 and 1987, Ascot Resources completed programs of ground magnetic and electromagnetic surveys and geochemical sampling on the area as the Ark Project