The Cranberry (T) occurrence is located on a small knoll in the southeastern headwaters of the Quatse River, approximately 5.0 kilometres east of Quatse Lake.

Regionally, the area is underlain by northwest-trending belts of basaltic volcanics and carbonate sedimentary rocks of the Upper Triassic Karmutsen and Quatsino formations (Vancouver Group) and mafic volcanics and sediments of the Upper Triassic to Lower Jurassic Bonanza Group (Holberg volcanic unit, Nahwitti River wacke and Parson Bay Formation). These volcanic and sedimentary rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, quartz diorite and andesite dikes intrude limestone, andesite and basalt of the Karmutsen and Quatsino formations. The sediments and volcanics strike 070 degrees and dips 30 to 35 degrees south.

The Cranberry A zone is a 2.0-metre thick zone of skarn exposed for 60 metres along a limestone-andesite contact. In 1980, a grab sample from the showing assayed 3.180 per cent copper, 11.66 grams per tonne silver and 0.10 grams per tonne gold (Assessment Report 8284).

The Cranberry B zone is a 1.7-metre thick zone of skarn exposed for 27 metres along a limestone-andesite contact and may be a faulted portion of the Cranberry A showing. Chalcopyrite and malachite are reported to be present.

In 1968, Dawn Minerals soil sampled the area. Also, at this time, Emperor Mines completed an airborne magnetic survey on the area immediately north. In 1969, Yellowknife Bear Mines Ltd. completed a program of soil sampling and a 49.6 line-kilometre ground magnetic survey on the area as the Little Joe claims. In 1980, a program of geological mapping was completed. In 1981 and 1983, Energex Minerals Ltd. completed an airborne electromagnetic survey and eight diamond drill holes, totalling 232.4 metres, on the area as the Cliff claims. During 1987 through 1989, programs of rock and soil sampling, geological mapping, minor trenching and 16.7 line-kilometres of ground magnetic surveys were completed on the area.

In 1991 and 1992, Daiwan Engineering Ltd. completed programs of prospecting, geochemical sampling and ground geophysical surveys the area immediately north as the Marisa 1-4 claims.

In 2016, the area was prospected by Tech-X Resources Ltd.