The Cisco occurrence is located near the southeast end of two small lakes on southern Texada Island and approximately 7.2 kilometres southeast of Mount Davies.

Regionally, the area is underlain by undivided sedimentary rocks of the Mississippian to Lower Permian Nanoose Complex (Buttle Lake Group), limestone, marble and calcareous sedimentary rocks of the Middle to Upper Triassic Quatsino Formation (Vancouver Group) and basaltic volcanics of the Upper Triassic Karmutsen Formation (Vancouver Group). The sedimentary and volcanic rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, several shear zones occur in chloritic Upper Triassic Karmutsen Formation (Vancouver Group) basalt, basaltic agglomerate and amygdaloidal basalt. Numerous quartz-carbonate alteration zones are developed along or adjacent to these structures.

The Cisco occurrence comprises a northwest-trending, pyritic quartz-carbonate (ankerite) shear zone within chloritic basalt and basaltic agglomerate. Some chalcopyrite has been identified within this zone.

In 1987, a rock sample (CIS-11) assayed 1.35 grams per tonne gold, while a nearby sample (CIS-4) yielded 0.78 gram per tonne gold (Assessment Report 16013). Gold ‘colours’ were reported to have been panned from a soil sample in the area of sample CIS-4.

In 1988, a rock sample (XR32515) from an area of hematite and carbonate alteration hosting chalcopyrite in a basalt, located several hundred metres east-southeast of the occurrence, assayed 0.33 per cent copper (Assessment Report 18671).

Work History

In 1987, a program of prospecting, minor test pitting and trenching and geochemical (rock and soil) sampling was conducted on the area as the Bobs, Cisco, Ed, Jen and May claims. In 1988, Echo Bay Mines entered into a joint venture with Rhyolite Resources Inc. who then completed a program of prospecting, geological mapping, trenching and geochemical (rock, silt, soil and heavy mineral) sampling on the Angel claims.

In 2007, Northstar Mining Ltd. conducted a 2257.6-hectare remote sensing (spectral analysis) program on the area as the Dude-Tak properties. The following year, a prospecting program and a 500.0-hectare remote sensing (gamma-ray) survey was conducted. In 2013, Northstar Mining Ltd. conducted a minor program of geological mapping and rock sampling on the area as the Texada property. Also at this time, a 19 000-hectare remote sensing (spectral analysis) survey was conducted on the area as part of the regionally extensive Texada Island property. In 2014 and 2015, Northstar Mining Ltd. conducted a geological interpretation program to identify future target areas for exploration on the Texada Island property.

In 2019, Quadra Coastal Resources Ltd. conducted a geological mapping program on the area as the Angel Gold property. During 2022 through 2024 Quadra Coastal Resources Ltd. conducted programs of prospecting, geochemical (rock and soil) sampling, LIDAR data reprocessing and a total of 553.2 line-kilometres of airborne magnetic surveys on the Texada Island property.