The Boundary area is underlain by marine sedimentary and volcanic rock of the Upper Triassic Stuhini Group. The stratigraphy is intruded by Late Triassic granodiorite, Early Jurassic monzonodiorite to gabbro (Texas Creek Plutonic Suite) and Triassic to Jurassic syenite to monzonite (Copper Mountain Plutonic Suite).

The Boundary zone is located where North Fork Creek enters a canyon. The zone consists of quartz veins and shears along the contact between the granodiorite and the andesite. Both rock units are highly sheared, leached and chloritic. Mineralization consists of pyrite, chalcopyrite and malachite in the rocks and in quartz veins. This area contains a copper-gold porphyry shear zone and a 2 to 3 metre wide quartz vein that, sampled in 1986, assayed 11.28 grams per tonne gold over 3.4 metres. The Boundary zone was hand trenched and sampled (Assessment Report 20843).

Although the location of the surface showing(s)are uncertain, 2007 drilling by Romios Gold in hole JW07-06 may have intersected the Boundary Zone Vein at depth. The hole intersected a broad low grade section (27.4 metres of 0.23 gram per tonne gold and 0.17 per cent copper) contained within the inter-fingered contact between the andesite volcanics and the granodiorite intrusive.

Refer to JW Central (104G 021) for details of the Jack Wilson (JW) property work, history, which includes the Boundary zone.