Is the Oak Island Flood Tunnel a British military booby trap?


Sir WIlliam Phips could have buried stolen treasure on Oak Island that was supposed to fund a political rebellion.

Sir William Phips was a privateer and treasure hunter based in New England. Rebellious British nobility hired him in the 1670s to loot a sunken Spanish treasure ship.


This is the treasure-laden Spanish ship, the Concepcion. After it sank, Phips found the shipwreck. Loyal to his British patrons, it’s believed he buried the Spanish treasure on Oak Island.

The Concepcion was a Spanish treasure ship that Phips captured and could have buried its treasure on Oak Island.

Painting of an 18th century ship that represents the British sailing across the Atlantic to Oak Island on a secret mission.

There’s strong evidence that nearly a century after Phips buried the treasure, the British Navy sent engineers and miners to protect the treasure with a booby trap.


Here’s an illustration of the British Corps of Royal Engineers regiment from the period.

A historic illustration of the British Corps of Royal Engineers regiment from the period.

Oak Island Flood Tunnel diagram

The booby trap was the complex Flood Tunnel found on Oak Island. Expert miners and engineers built it over the course of a single summer.


A picture of an historic British miner's tool that was located on Oak Island.

Oak Island and its Lost Treasure by Graham Harris and Les MacPhie book

Graham Harris and Les MacPhie are two expert mining engineers who have extensively researched and documented the story of the British military and the flood tunnel. They tell this story in their book Oak Island and its Lost Treasure.

Read on to learn more about this feat of engineering!


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