In 1958, Canada used a massive non-nuclear explosion to vaporize a deadly underwater mountain
Engineers in 1958 used over 1,300 tons of explosives to destroy Ripple Rock, a treacherous underwater mountain in British Columbia that had sunk more than 100 ships.
Ripple Rock was a twin-peaked underwater mountain in Canada's Seymour Narrows that acted as a deadly trap for mariners. After decades of shipwrecks and lives lost, engineers spent two years tunneling through the seabed to place 2.7 million pounds of explosives inside the rock.
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