
It had a cafeteria, medical facilities, a gym, a chaplain’s office, a barber shop and countless meeting rooms. In addition to housing the SAGE computers, The Hole was meant to support 400 people for a month in the event of nuclear war. Other than the computers, what was down there? The granite of the Canadian shield made for perfect nuke-resistant armour and nearby Trout Lake could provide enough water to cool the complex. It was a hub for rail, telecommunication and highway networks. North Bay had several things going for it. It already had an airbase. To keep them safe, they were kept deep underground. Of course, the computers were themselves a tempting target. Learn the secrets of the bunker in the short documentary The Hole in Reservoir Hill.

During the Cold War, Canada and the United States built a series of supercomputers - called SAGE - meant to allow the two countries to coordinate their military response in case of attack. “The Hole” is the local nickname for the NORAD North Bay Underground Complex, a bunker built in the 1960s to withstand a Soviet nuclear attack.
