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Sudbury's Superstack to come down Vale has announced plans to take down Sudbury's iconic Superstack, and the lesser-known Copperstack.

Vale Base Metals confirms 53 feet of Sudbury's iconic Superstack have been successfully dismantled. Now standing at 1,088 feet, it remains Canada's second-tallest free-standing structure—but holds ...

Add Yahoo as a preferred source to see more of our stories on Google. Paul Guenette, the project lead for Vale’s Superstack dismantling, explains how the world's second tallest chimney will be ...