The Impasse (JC 9) occurrence is located on a small hill approximately 1.5 kilometres west northwest of the northwestern end of Jacobie Lake.
Regionally, the area is located within the central Quesnel Trough. The area is underlain by Upper Triassic to Lower Jurassic sedimentary and mafic to felsic volcanic rocks. This sequence has been intruded by small alkalic stocks of diorite to syenite compositions. This sedimentary and volcanic assemblage is correlative with the Nicola Group.
Locally, disseminated pyrite and chalcocite are hosted in strongly brecciated and carbonate-altered basalt with fragments containing intensely quartz-sericite-carbonate alteration. Native copper and malachite are also reported in the area. In 1984, a rock sample assayed 1.40 per cent copper (Assessment Report 13430). In 1991, a select grab sample (ST-011) assayed 1.06 per cent copper, while later the same year another sample (022) assayed greater than 1.0 per cent copper with 0.26 per cent zinc (Assessment Report 21584).
In 1984, Asamera Minerals completed a program of rock, silt and soil sampling, geological mapping and ground geophysical surveys on the area as the Impasse claim. In 1991, Pamicon Developments completed a program of geochemical sampling and geological mapping on the area as the Bud and JC claims.