The Humpy occurrence is located approximately 9 kilometres east-southeast of the confluence of Red Creek and the Sustut River (Assessment Report 4855).

The regional geology is similar to that of the Willow Creek occurrence (refer to 094D 016). The showing is hosted within andesitic tuffs of either the Upper Triassic Dewar or Moosevale formations (Takla Group). The andesitic tuff is grey and medium-grained. Mineralization occurs as chalcopyrite and chalcocite in small malachite-stained shear zones or in quartz and calcite veins of variable size. Rocks surrounding the shear zone are considerably more siliceous. One of the shear zones is mineralized over a strike length of 304.8 metres (Assessment Report 4855).

Rio Tinto Canadian Exploration held the property in the early 1970s as the "A" claim group. A detailed sampling and mapping program, supported by trenching and diamond drilling was conducted in 1973. A total of 2498 geochemical samples were taken, mostly soil. Two drill holes were completed on the A462 occurrence (104D 102) in 1974. In 1974, a combined airborne magnetic and electromagnetic survey totalling 640 kilometres in length was completed over the 'A' claims. (Assessment Report 4921). Several high conductivity anomalies on the claims were recommended for follow-up. The Humpy may be just south of the southern extent of the survey.

See A462 (104D 102) for further details.