The Ancient Gate Found Under the Soo Locks in 1873 — The Ojibwe Said They Shut It From Inside

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On the ninth of July, 1873, a blast in the lock pit at Sault Ste. Marie, Michigan, broke into a hidden passage in the sandstone beside the St. Marys rapids. It ran two hundred and fourteen feet, dead straight and dead level, and at its end stood a gate of grey stone sixty-six feet high: two leaves meeting in one tight seam, thick stone lips stacked across each, and nothing on the near side to take hold of.

The army engineer who measured it had grown up on canal locks, and he saw what only a lock man would see: the gate was set to keep the river out. Four days later an old Ojibwe man came down the rapids in a canoe, asked three questions nobody could have answered for him, and left a warning in three parts. Do not knock on it. Do not build against it. Do not quiet the rapids. Within ten days the passage was walled up and entered on the drawings as a rock pocket.

This film sets six records side by side: an engineer’s blasting journal, a storehouse ledger and a time book, the words of a father and his son forty-nine years apart, a survey party’s field book from 1942, and a tape recorded in 1986. The ordinary explanation is given its full weight. In 1873 the seam took nothing. In 1942 it measured three and three quarter inches.

This documentary examines historical records, archaeological research, and Indigenous oral traditions. It presents documented findings alongside long-standing questions that remain open. Where accounts differ, both are presented. Nothing here is offered as a settled conclusion.


By https://www.youtube.com/watch?v=BPMURQnOYz0