The Pine prospect occurs along the north side of a creek flowing southwest into Allison Lake, up to 400 metres east of the lake.

Regionally, the area along the Allison Creek valley is underlain mostly by biotite hornblende granite and quartz monzonite of the Upper Triassic to Lower Jurassic Allison Lake pluton. More mafic phases, comprised of granodiorite, diorite and gabbro, are occasionally present within and along the periphery of the intrusion. The north-trending contact with Upper Triassic Nicola Group andesite and basalt lies east of the valley and comes to within a kilometre east of Allison Lake. The pluton is traversed along the east side of the valley by the north-striking Allison fault.

The Pine deposit is comprised of seams and disseminations of chalcopyrite and pyrite in reddish granite and quartz monzonite, east of the Allison fault. Stronger copper mineralization occurs along northeast-striking, steeply-dipping fractures and shears. Two trenches, 30 metres apart, cut across a west-striking zone of leached and well-fractured rock, approximately 400 metres east of Allison Lake.

In 1968, analyses from the trenches averaged 0.18 and 0.16 per cent copper, both over a width of 18 metres (Assessment Report 1857, page 3).

In 1971, three additional trenches, excavated in an area 270 metres long and 60 to 90 metres wide, possibly in the same zone, averaged 0.20, 0.19 and 0.37 per cent copper over lengths of 48.8, 42.7 and 45.7 metres, respectively (National Mineral Inventory).

Farther west, along the east side of Allison Lake and immediately east of the Allison fault, gossanous outcrops contain a little pyrite and chalcopyrite, with very sparse malachite.

In 1994, sampling of a historical trench located up hill to the east of the previous trenches is reported to have yielded 0.36 per cent copper (Assessment Report 23775).

Work History

This prospect was initially trenched some time prior to 1968. Blue Gulch Explorations Ltd. conducted geochemical (rock and soil) sampling, 366 metres of trenching and 641 metres of diamond drilling in three holes between 1968 and 1970 on the area as the Pine, Reg and Dy claims. Additional soil and geological surveys were completed just south of the prospect by Blue Gulch Explorations and Pacific Resources Developments Ltd. in 1973 and 1974.

In 1994, Harlow Ventures Inc. and Vanco Explorations Ltd. completed a minor program of prospecting and rock sampling on the area as the Stefan claim.

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.