The MS 4 copper showing outcrops along the steep east side of the Summers Creek valley, approximately 5 kilometres northeast of the summit of Missezula Mountain.

The area along Summers Creek is underlain by the Eastern volcanic facies of the Upper Triassic Nicola Group, comprising mafic, augite and hornblende porphyritic pyroclastics and flows, and associated alkaline intrusions.

Locally, clasts and stringers of chalcocite occur in the matrix of a thick sequence of lahar deposits with abundant syenitic clasts of the Upper Triassic Nicola Group (Eastern Belt, Bulletin 69). In one instance, a concentration of chalcocite is developed along a northeast-striking bedding plane shear. The various occurrences outcrop over an area of 80 by 47 metres.

In 1979, a chip sample (6797) assayed 0.720 per cent copper and 24.7 grams per tonne silver over 5.5 metres, whereas three other chip samples (6796, 7416, 7417) assayed 0.192 to 0.653 per cent copper over 2.3 to 4.0 metres (Assessment Report 7584, page 6).

Work History

In 1969, a program of soil sampling was completed on the area as the Roadblock claims.

In 1972, Vargas Mines completed a 29.5 line-kilometre ground magnetic survey on the area as the EJ claims. The following year, Calcio Silver Mines Ltd. completed a program of geological mapping and geochemical (rock and soil) sampling on the claims.

During 1979 through 1981, Newmont Exploration of Canada Ltd. held the area as the HG and MS claims and completed programs of geological mapping and geochemical (rock and soil) sampling on the claims.

In 1984 and 1985, P.A. Christopher completed programs of soil sampling and a ground magnetic and electromagnetic survey on the area as the MS claims.

In 1991, Fairfield Minerals Ltd. completed a soil sampling program on the area as the Zu claims.

In 2009, Orofino Minerals Inc. completed a 922.0 line-kilometre airborne magnetic and gamma-ray spectrometer survey on the area as part of the Allison Lake property. The following year, Orofino Minerals Inc. completed a program of prospecting, geological mapping, geochemical (rock, silt and soil) sampling and 57.0 line-kilometres of ground magnetic and induced polarization surveys on the Allison Lake property.

During 2012 through 2015, Colorado Resources Ltd. completed programs of geological mapping, geochemical (rock and soil) sampling and a 6.0 line-kilometre induced polarization survey on the area as the Hit-Aspen Grove property.

In 2019, Richard Billingsley completed a program of prospecting, soil sampling and biogeochemical sampling on the area as the Sadim property.