The FK North showing is underlain Devonian Devonian to Pennsylvanian Stikine Assemblage rock intruded by Late Devonian dioritic rock of the Forrest Kerr Plutonic Suite.

The main mineral showings consist of ankerite in-filled breccia zones within siliceous sediments in which 1-2 per cent chalcopyrite, along with trace pyrite, azurite and malachite occur. Chip sampling completed in 1991 has shown the zone to be poorly defined over a 50 metre strike length with the widths being narrow. Copper values, in outcrop, of up to 0.48 per cent with up to 57.94 grams per tonne silver occur but are erratically distributed (Assessment Report 21911).

In 1990, Royal Scot Resources performed geological mapping and stream sediment sampling on accessible portions of the property. A total of 12 rock samples and 13 stream sediment samples were collected for analysis In 1991, 3 Royal Scot personnel collected a total of 3 silt and 36 rock chip samples from the property.

In 2009 and 2010 respectively, 46 and 24 soil samples were collected on behalf of the Forgold Syndicate Ltd, whose property covers the historic Forgold, For and FK properties (Assessment Reports 31344, 32094, 32574).