The C 2 area is characterized by scattered mineralization that occurs in Pennsylvanian basaltic augite porphyry and andesite of the Stikine Assemblage that have been intruded by a stock of quartz monzonite possibly related to the Middle Jurassic Three Sisters Plutonic Suite or the Middle to Late Triassic Stikine Plutonic Suite (Map 17 (H-72-9), Assessment Report 3984B). Late Devonian granite of the Forrest Kerr Plutonic suite is mapped in this area as well. The andesite is the dominant rock of the assemblage and may vary from tuffaceous to crystalline and contain minor beds of chert and limestone and is frequently dioritized near the quartz monzonite contact.

At this occurrence mineralization is hosted by quartz and quartz-calcite veins which are associated with dominant north-east shears. These veins and shears are found in all the above main rock types and contain chalcopyrite, hematite, magnetite and pyrite. Chloritic alteration is commonly found with shearing.

Refer to IN 32 (104G 080) for details of exploration work completed on the In, Out and C claims by Hecla Operating Company, from 1971 to 1973 inclusive.