Three workers remain trapped at a gold and copper mine in Western Canada on Thursday as a remote-controlled scoop began removing debris from rockfalls to gain access to them, a mine company said in a statement.
The heap of rocks is 20 to 30 meters (65 to 100 feet) long and seven to eight meters (22 to 26 feet) high. The workers were trapped Tuesday after two rockfalls at the Red Chris mine in northern British Columbia.
