The property is underlain by Mississippian to Triassic Kadaha Formation (Cache Creek Complex) consisting mainly of thick bedded black and grey chert and minor white chert and some interbedded black pyritic argillite. Impure tuffaceous limestone breccia also occurs. Upper Missisippian to Permian ultramafic bodies of the Cache Creek Complex also occur.
In 1949, two Cominco prospectors reported finding gold bearing silicified breccia in this area and located several claims; they followed this up in 1950 by doing more work but with disappointing results and the claims were never recorded.
In 1987 Cominco Ltd located the PER claims to investigate previous work. During the 1988 program, rock cairns with notes and tags preserved in tin cans were located that matched the prospectors1 1950 notes. A program of geological mapping, prospecting and contour soil sampling was conducted in the area of reported gold occurrence and on other areas of the claim group. A total of 22 rocks and 150 soil samples were collected.
In 1949 Cominco prospectors reported assay results of sampling of limonitic and manganese stained silicified breccia and quartz of 126.17 grams per tonne gold and a 2 metre thick slab was reported to contain 13.71 grams per tonne gold (Assessment Report 18040). Sampling of the limonitic brecciated chert in 1988 indicated no gold values in any of the numerous specimens and samples cut from float and outcrop.
The 1988 prospecting program located a fault shear zone in chert and peridotite to the east of the original showing area. This zone is approximately 10 metres wide and is mineralized with disseminations and small lenses and blebs of chalcopyrite and sphalerite. Sampling indicates no gold values, very low silver and low copper-zinc values.