The Cas occurrence is located at an elevation of approximately 1530 metres on the north-facing slope of the Promontory Hills, approximately 16.5 kilometres northwest of Merritt.

The Promontory Hills-Craigmont mine area is underlain by a complex northwest-trending, steeply dipping volcanic pile of Upper Triassic Nicola Group rocks, bounded to the north by the Upper Triassic to Lower Jurassic Guichon Creek Batholith and unconformably overlain by the Upper Cretaceous Kingsvale Group. Most of the area is covered by thick gravel overburden. Regional faults trend north-northwest.

The occurrence area is underlain by quartz diorite to granodiorite assigned to the Border phase of the Guichon Creek Batholith (Map 30).

Locally, a diorite with calc-silicate alteration hosts magnetite breccia and magnetite-chalcopyrite mineralization associated with garnet-epidote-actinolite skarn.

Work History

The area has been explored in conjunction with the nearby Craigmont (MINFILE 092ISE035) past-producing mine and the Titan Queen (MINFILE 092ISE034) occurrences and a complete exploration history of the area can be found there. The occurrence was first identified in 2017.