The Noname and West Noname area are underlain by andesitic rock of the Lower Jurassic Unuk River Formation of the Hazelton Group. A northwest trending belt of folded volcanic rocks contain a thick sedimentary sequence infolded along a synclinal axis.

The Noname Zone consists of a strong, generally vertical quartz-sulphide stockwork at an oblique angle to the overall strike of the mineral zone in highly sericite and chlorite altered rocks. Galena, sphalerite, pyrite and minor chalcopyrite are associated with silicification over a width of 4 to 5 meters and an exposed length of 10 metres. Strike extensions are obscured by Noname Lake to the north and moss-covered outcrops and overburden to the south. Flat lying quartz-massive pyrite veinlets up to 1 centimetre wide were also noted in the trenching. Late-stage post mineral, narrow barren quartz veins are present within the mineralized zone. Two types of mineralization types were noted; one consists of small stringers and pockets of sulphides; namely galena-sphalerite in sericitic-chloritic rock and the second appears to be quartz-sulphides (pyrite-galena-sphalerite-minor chalcopyrite). The zone is only 100 meters east of the West Noname zone and may be related to it.

The West Noname zone consists of weak disseminated sphalerite and galena with strong disseminated pyrite and weak silicification in a porphyritic trachyte. The mineralized intrusive has been traced over a strike length of 200 meters and appears to be up to 25 meters wide. A weak barren quartz-calcite stockwork forms up to 5 per cent of the rock with sulphides forming up to 5 per cent as well. Sphalerite and galena are generally less than 0.5 per cent of the rock. Late stage, barren quartz-calcite veins up to 0.15 metre in width may represent 10 per cent of the rock locally. Contact areas to the intrusive may contain weakly to strongly silicified wall rocks up to 6 to 7 meters wide with local strong pyrite-sphalerite and galena with minor chalcopyrite.

See Silver Butte (MINFILE 104B 150) for related details and a common Silver Coin property work history.