According to a Thursday evening update from Newmont Corp., which operates the Red Chris mine, the debris blocking access to the underground area is estimated to be 20 to 30 metres long and 7 to 8 metres high. There is a gap between the top of the pile and the roof of the mine, allowing drone access.

A rescuer who has experienced the relief that comes with successfully freeing people trapped underground, says lessons learned at a rescue operation at British Columbia's Red Chris mine can help teams across the country.

Imperial Metals (TSX:III) reported two fall of ground incidents that occurred on July 22 at the Red Chris copper-gold mine in British Columbia ・At the time of the initial ground fall, three contractor employees were working more than 500 metres beyond the affected zone ・The second incident restricted communication with the workers,