The Diana showing is located just south of the Laluwissin Creek - Highway 12 junction.
The area is underlain by Triassic Mount Lytton Complex intrusives comprising layered dioritic rocks as well as amphibolite, mylonite and younger intrusions of quartz diorite and andesite dikes. A pendant of possibly Upper Triassic Nicola Group volcanic rocks hosts the Diana showing. The contact of the intrusives is not exposed but a lineation has been outlined by a magnetometer survey (Assessment Report 3154). Intrusives outcrop on the upper slopes to the east. They include diorite, quartz diorite and feldspar porphyry. Alteration minerals along fractures include chlorite, epidote, up to 10 per cent pyrite and reticulate quartz veins.
Locally, disseminated chalcopyrite with pyrite is exposed in a 93-metre long trench in local narrow shear zones in chlorite altered andesite. Shearing strikes 330 degrees and dips approximately 75 degrees north. Grab samples from the trench assayed from 0.33 to 0.61 per cent copper (Assessment Report 3154).
Malachite staining in narrow shear zones occurs north and south of the main showing. Other volcanics on the property include basalt and andesite porphyry. Chlorite and epidote alteration and calcite veinlets are common. Gossanous zones occur locally with disseminated pyrite and chalcopyrite. Azurite is reported to occur along fractures.
The area was originally staked as the Victory claim in 1941. In 1971, Cuda Capital completed a program of soil sampling and a ground magnetometer survey on the area as the Diana and Judy claims. The following year, a program of geological mapping was completed by Cold Resources. During 2006 through 2014, Atocha Resources completed programs of prospecting, geological mapping, geochemical sampling and minor trenching on the area as the McGillivray property.