Northeastern British Columbia is associated with a number of world-renown mines that are generally related to gold, copper, silver, and molybdenum reflecting the range of host geology producing a variety in mineral deposits. The Stewart region is host to several past-producing volcanogenic massive sulphide-related and porphyry-related deposits; one the most notable is the Eskay Creek Au-Ag Mine that closed in 2008. This is a volcanogenic massive sulphide (VMS) deposit with an unusual association of Au, Ag, Hg, As, and Sb associated with bedded sulphides that include Cu, Pb, and Zn minerals. Before its closure in 2008, the annual production at Eskay Creek Mine was 320,784 ounces of gold and 15.5 million ounces of silver. Another notable VMS-related deposit is the Granduc VMS Cu-Ag Mine that closed in the mid-1980s. There are several other previously producing mines and undeveloped deposits.

Cache Exploration Inc. is in current ownership of 8 claim blocks in the Stewart Gold-Silver-Copper District. Four of the claim blocks (totaling 1,760 hectares) are located approximately 45 km NE of Stewart, BC and approximately 10km west of Granduc Mine and 50 km south of the Eskay Creek Mine; the claims are adjacent to the same fault system and anticline that concentrated the mineralization at Eskay Creek. Four other claim blocks (totaling 1,650 hectares) are located approximately 10km SE of Stewart, BC and lies within the Hazelton Group; the same group that hosts Au-Ag mineralization at both the Eskay Creek Au-Ag Mine and the previously producing (1919-1940) Dolly Varden Ag-Zn-Pb-Cu-Au Mine.