The Lucy showing is located in a roadcut on the Log Creek gravel road, 16 kilometres northwest of North Bend.

The area is underlain by Cretaceous metamorphic rocks (amphibolite facies), possibly derived from the Permian(?) to Lower Cretaceous Bridge River Complex (Geological Survey of Canada Map 42-1989). These rocks are in fault contact with the Bridge River Complex (Group) to the east, and intruded by Late Cretaceous granitic plugs.

Black phyllite which is locally pyritic (less than 5 per cent pyrite), trends northwest and dips steeply east. Quartz sweats, parallel to foliation, are common. Unaltered quartz diorite and hornblende diorite dykes cut the phyllites in two locations. A 5 metre wide, well-fractured shear zone striking northeast crosscuts the regional foliation and hosts a mineralized quartz stockwork.

Pyrite and arsenopyrite occur as disseminations and in quartz veinlets over a strike length of 2.5 metres within the centre of the quartz stockwork. Sulphides decrease towards margins of the zone. Phyllites are silicified.

The stockwork does not extend along strike to the northeast and is covered by thick overburden to the southwest.