The Cris claims (Broker, Lot 4189 and Vermont, Lot 4107) are believed to have been located next to the Millie Mack (082KSW051) on Blue Grouse Mountain approximately 16 kilometres east-northeast of Burton. The claims have lapsed so the location is uncertain.
There is little information on the property, however, Geological Survey of Canada Open File 432 (number 251) lists the property as containing silver, lead and zinc. The location is approximately 1 kilometre north of the Millie Mack, so it is likely underlain by clastic sedimentary rocks (mainly argillites) of the Triassic Slocan Group, which are in tectonic contact with and underlain by mafic volcanic strata of the Jurassic Elise Formation of the Rossland Group (Geological Survey of Canada Bulletin 161).