After going through the map and reading this its makes you wonder how did they explain the dirty clothes they must have occured doing this.
Also how and where did they hide all this dirt. Even bagging it would only displace the area they dug out to hide the dirt in.
How did they explain also where all those bed boards were going?
They must have had some big bumbling bubba type NAZI guard they could take advantage of to have pulled this off.
Bet the prison warden was not so bright either.
I'm still seeing a great story for a series on the TV.
rick