The Oro occurrence is located on the south side of Caribou Creek, approximately 7 kilometres east of Burton.

The area is shown as being underlain by hornblende biotite quartz diorite of the Cretaceous Goat Canyon-Halifax Creek stock (Geological Survey of Canada Bulletin 161) which intrudes clastic sedimentary and mafic volcanic rocks of the Triassic Slocan Group. Biotite from the Goat Canyon-Halifax Creek stock has been dated by the potassium-argon method at 107 million years (Geological Survey of Canada Open File 464).

Locally, as defined by drilling, a skarn zone near the contact of amphibolite with a biotite hornblende quartz diorite dike hosts a brecciated quartz veined zone mineralized with disseminated pyrrhotite and pyrite with minor scheelite.

In 1983, low- grade gold intersections were obtained, yielding up to 1.6 grams per tonne gold over 1.07 metres, including 3.6 grams per tonne gold and 6.8 grams per tonne silver across 30 centimetres (Hole 83-2; Assessment Report 11287).

The Oro group of four claims was staked to cover a gossanous trench uncovered during a logging operation in the 1970‘s. In 1982, Dorado Resources completed a program of magnetometer, VLF-EM, CEM and soil geochemical surveying. The following year, three drill holes, totalling 374 metres, were completed. In 1983 and 1987, Carl Creek Resources completed programs of geological mapping, geochemical sampling, trenching and a ground electromagnetic survey on the area as the Gold Till claims. In 2001 and 2002, 1330275 Ontario Limited completed programs of rock, silt and soil sampling and geological mapping on the area.