The Stone occurrence is located north of the Fraser River, south of Trophy River and northeast of Bearpaw Ridge. Access is by Pass Lake Road, 25 kilometres east of McGregor, then 1.2 kilometres south of the new logging road.
Regionally the area is underlain by Cambrian to Ordovician limestone, slate, siltstone, argillite and dolomitic carbonate rocks, greenschist metamorphic rocks of the Silurian Nonda Formation, quartz arenite sedimentary rocks of the Lower Cambrian Gog Croup and greenschist metamorphic rocks of the Neoproterozoic Misinchinka or Miette Groups. To the southwest the sedimentary units have been intruded by a small syenitic to monzonitic intrusive stock.
Marble outcrops were discovered by 26BT Resource Development Co. Ltd. in 1996. The outcrops are an exposed anticlinal structure consisting of probable Silurian limestones, metamorphosed by volcanic intrusives located to the southwest.
Tests of samples identified three types of marbles that have potential as decorative building stones. These are: a predominantly black marble similar to the Grigio Cornico, an Italian marble; a buff-coloured marble similar to Perlato Sicilia; and a white and grey marble with a reddish tinge.
Work History
The area has been explored in conjunction with the Bearpaw Ridge (MINFILE 093I 028) occurrence and a complete regional exploration history can be found there.