The Karen (Bod) occurrence is located approximately 9.5 kilometres east-northeast of Lytton, at an elevation of approximately 780 metres.

Regionally, the Lytton area is along the east side of the Fraser River graben and fault system. It is underlain by a thick series of Cache Creek sediments and volcanics deposited in the Tyaughton trough, a former geosyncline along the east side of the Coast Mountains. These are overlain unconformably by the Lower Cretaceous Spences Bridge Group. The rocks are along the east contact of the composite intrusion known as the Mount Lytton Batholith.

The area is underlain by Triassic Mount Lytton Complex intrusives. These rocks include layered sequences of anorthosite, granodiorite and gabbro, also amphibolite, mylonite and younger quartz diorite intrusions and andesite dikes. Middle and Upper Cretaceous Spences Bridge Group volcanics occur in normal and fault contact to the southeast and north, respectively. There is widespread faulting and fracturing on the property.

Locally, disseminated and fracture-filling chalcopyrite mineralization with associated magnetite, pyrite, chalcocite, malachite and azurite is hosted in a brecciated diorite and volcanics cut by andesite dikes in zones up to 30 metres wide. Irregular limestone bodies containing narrow mineralized shear zones are also reported. Propylitic and albitic alteration is extensive. Alteration minerals include epidote, chlorite, albite, quartz, kaolin and sericite.

Irregular copper mineralization is reported along the road for approximately 2 kilometres to the northeast of the main zone. On the Bod 13 claim, near the top of a cliff, a diorite and gabbro breccia host disseminated chalcopyrite over narrow widths. Other zones are reported to host several narrow veins of massive chalcocite.

In 1970, samples are reported to have yielded up to 0.65 per cent copper over 6 metres on the JM 2 claim, 0.58 per cent copper over 54 metres on the JM 3 claim, 1.16 per cent copper over 45 metres on the JM 5 claim, 0.29 per cent copper over 75 metres on the JM 10 claim and 0.48 per cent copper over 9 metres on the JM 9 claim (Property File - Phendler, R.W. [197-05-16]: Report on the JM Copper Prospect).

In 1971, two samples from trench D averaged 0.22 per cent copper (Property File - Phendler, R.W. [197-05-16]: Report on the JM Copper Prospect).

In 1974, two samples (Lit 1 and 2) assayed 0.76 and 0.07 per cent copper, respectively (Property File - Phendler, R.W. [197-05-16]: Report on the JM Copper Prospect).

In the early 1910’s, a tunnel or short adit, of unknown length, and a number of pits were developed. In 1970 and 1971, Phelps Dodge Corporation of Canada Limited conducted geological mapping and trenching in the area. In 1974, the area was prospected and sampled as the J M property. In 1980, Tracer Resources conducted a geochemical survey on the area.