https://lswilson.dewlineadventures.com/

About the Distant Early Warning Radar Line in the arctic, along the American coast line.
It, was designed and built during the “Cold War” as the primary line of air defence warning of “Over the Pole” invasion of the North American Continent.
The actual construction of the 58 sites took place between 1955 and 1957.

This is a virtual museum dedicated to it:
https://dewlinemuseum.com/