An excellent book to read is "Enemy on Our Doorstep: The German attacks at Bell Island, Newfoundland, 1942", by Steve Neary (published by Jesperson Press, 1994). It can be found used (at times) on Amazon, since it is now out of print (which also means it's pricey).
The mine at Bell Is. was one of the largest iron ore mine in the world at that time (even now, it's got some estimated 4 billion tons of ore left - but it's too far underground, and under sea, and too low grade to be profitably extracted).
Remains of uboat victom, Bell Is., taken by me in 2003
