The Bush River nepheline syenite occurrences are located on a south-facing slope of Stovepipe Mountain, in the headwaters of a northern tributary of Chatter Creek and approximately 84 kilometres north-northwest of Golden.

Regionally, the area is underlain by a series of northwest-trending undivided sedimentary rocks and quartz arenite sedimentary rocks of the Neoproterozoic to lower Cambrian Mural, McNaughton, Mahto and Jasper formations (Gog Group).

Locally, two middle to late Paleozoic nepheline syenite bodies, are located at the 2133 and 2438-metre elevations (Geological Survey of Canada Map 43-1962). The syenite bodies also host sporadic pyrite mineralization with euhedral pyrite clasts up to 4 centimetres in size and rare occurrences of chalcopyrite mineralization associated with altered pegmatitic feldspar veins.

Work History

In 2020, Pegasus Resources Inc. completed a program of geological mapping and rock sampling on the Vertabrae Ridge property. A sample (148516) from a mineralized syenite boulder assayed 1.11 per cent copper and 10.5 grams per tonne silver (Assessment Report 39434).

The following year, a further program of geological mapping and rock sampling, a 590.8 line-kilometre airborne magnetic survey and four short backpack drillholes, totalling 37.0 metres, were completed on the property. A sample (151701) collected from a pegmatitic feldspar dike in syenite yielded 2.66 per cent copper and 11 grams per tonne silver (Assessment Report 40241).