The Head Bay (Road Zone) occurrence is located southwest of the Sucwoa River, approximately 2 kilometres west of the river mouth on Head Bay.
At the prospect, the multiphased Head Bay stock of the Eocene Catface Intrusions ranges in composition from diorite to coarse gabbro. The mafic phases contain up to 25 per cent magnetite and are in contact with Upper Triassic Vancouver Group Quatsino Formation limestone. Skarn is present locally.
Locally, a shallow dipping northwest striking system of pyrite-quartz-chlorite-chalcopyrite lenses occurs in weakly sheared magnetite-rich gabbro. A persistent pyrite-quartz vein (No.1 vein) forms the hanging wall of the zone. It has been exposed over a strike length of 38 metres.
In 1980, rock chip sampling of the area yielded up to 6.0 per cent zinc, 0.50 per cent mercury from sample E6 and 0.48 per cent copper from sample E7 (Assessment Report 9130).
In 1983, rock sampling yielded values up to 282 grams per tonne gold, 59.3 grams per tonne silver, and 2.04 per cent copper (sample KR 003; Assessment Report 12058).
In 1987, seven channel samples, taken over an average width of 18 centimetres along the length of the mineralized zone, yielded an average of 9.16 grams per tonne gold. The same year, three trenches were completed. Trench 1 yielded an average of 1.41 grams per tonne gold over 2.87 metres, including a hanging wall section yielding 3.44 grams per tonne gold across 0.50 metres. Not included in these averages were two grab samples yielding 201.3 and 24.82 grams per tonne gold from sulphide lenses. Trench 2 yielded an average of 12.98 grams per tonne gold over 1.00 metres. Trench 3 yielded an average of 4.46 grams per tonne gold over 0.50 metres. An average grade of the zone, as indicated from trenching, assayed 4.41 grams per tonne gold across 1.46 metres. Silver and copper values were reported range from nil to 84 grams per tonne and 6.2 per cent, respectively (Assessment Report 16355).
In 1988, assay results gave values ranging from 2.33 grams per tonne gold to 151.7 grams per tonne gold, the latter (sample #5733) over 20 centimetres (Property File - Centaur Resources, 1988). The same year, diamond drilling intercepted values up to 58.2 grams per tonne gold over 0.25 metres (Assessment Report 17521).
In 2007, rock chip sampling yielded from 1.37 to 28.56 grams per tonne gold (Assessment Report 29150).
During 1979 through 1981, Pan Ocean Oil completed programs of geological mapping and geochemical sampling on the area as the Tah 1-19 claims. In 1983, Aberford Resources continued on the previous mapping and sampling programs. In 1984, Homestake Canada completed a program of geological mapping and rock sampling. In 1987, Great Keppel Resources completed a program of geological mapping, geochemical sampling, hand trenching and a ground magnetic survey. In 1988, Centaur Resources completed a program of geological mapping, geochemical sampling and 9 diamond drill holes, totalling 437.1 metres. In 2007 and 2008, Silverlake Capital completed programs of geochemical sampling and geological mapping and two diamond drill holes on the area. Diamond drilling failed to intercept any mineralized zones (Assessment Report 33789). During 2009 through 2013, Homegold Resources completed programs of prospecting, historical literature reviews and air photo interpretations on the area as part of the Head Bay property.
In 2012, Canadian Dehua International Mines Group Inc. completed air photo interpretation on their Head Bay Property, covering the Glengarry and Elaine past producers, the Rob Roy, Head Bay and Vivian prospects, and the Mohawk, Middle Quarry, Upper Quarry and North Tsowwin showings. In 2014 Pioneer Exploration Corp. on behalf of Canadian Dehua completed GPS grid-based geological mapping, soil and stream moss mat geochemistry and ground magnetics covering the Glengarry past producer, and the Rob Roy and Head Bay prospects; and limited prospecting and stream moss mat geochemistry near the Vivian prospect. In 2015 a rock geochemistry program yielded 9.22 ppm gold from a select outcrop grab of a 0.12 metre thick quartz-sulphide vein at the Head Bay occurrence.