The Burnt Mountain copper occurrence is located on a northwest- to west-facing slope, southeast of the McGregor River and approximately 12.5 kilometres southwest of the rivers’ junction with Herrick Creek.
The region is underlain by an assemblage of sedimentary rocks consisting mainly of continental margin and shelf facies rocks. This assemblage was deposited on and to the west of the ancestral North American craton. These sedimentary rocks, for the most part typical miogeoclinal facies, range in age from Hadrynian to Upper Cretaceous. Structurally these rocks are part of the Foreland thrust and fold belt of the North American Cordillera.
Most of the Burnt Mountain showing area is underlain by limestone, shaly limestone, thin-bedded quartzite and phyllite of the McNaughton Formation of the lower Cambrian Gog Group; however, in the south Hadrynian argillite, sandstone and limestone of the Miette Group outcrop. These rocks strike northwest as is common for the region as a whole, and in this area dip vertically to 80 degrees northeast.
Mineralization consisting of chalcopyrite, bornite, malachite and pyrite occurs in three quartz-carbonate veins. The veins, up to 4 metres wide, are conformable with the enclosing sedimentary rocks. Sampling in 1981 returned 0.0605 to 0.1260 per cent copper over widths of 3 to 7 metres (Assessment Report 9235).
Work History
Historical trenches are reported on the occurrence and likely date to the early 1950s.
In 1981, Roddy Mines Inc. completed a program of geochemical (rock and soil) sampling and a ground electromagnetic survey on the area as the Dave and Sandy claims.