The Macgold 4 area is underlain by a sequence of marine sedimentary and volcanic rocks of the Upper Stuhini Group. The stratigraphy has been intruded by Early Jurassic granodiorite to syenite.
Skarn mineralization was observed in an outcropping of a marble unit in the northwest corner of the property near the toe of a hanging glacier (samples numbers ECCR-155,156). The attitude of this marble unit is 006/60 east and contains thin vienlets (1 to 3 centimetres) of pyrite-chalcopyrite-hematite in thin serpentinite layers where the marble contacts the granitoid. Large euhedral garnet,epidote and quartz characterize the skarn gangue assemblage.
A sample taken assayed 1.85 grams per tonne gold, 4.6 grams per tonne silver and 0.3 per cent copper (Assessment Report 20737).
In 1990, the MacGold 3 to 5 claims were owned by Ecstall Mining Corp. and Omega Gold Corp and under option to Golden Arrow Resources. The work consisted of reconnaissance mapping and extensive rock geochemical sampling (124 rocks) from several prominent gossans and mineral occurrences.
In 2006 and 2007, Hathor Exploration Ltd. completed a 7228.7 line-kilometre airborne geophysical survey on the area as the Snip claims of the Iskut project. In 2008, Max Minerals Ltd. examined the property.