The Nordreisa u-boat bunker is located approximately 100 miles east of Tromso and serves as the home port of the 37th Combat Flotilla. The facility is relatively new and includes a total of thirteen pens. The northernmost u-boat bunker in Norway, it is believed the Kriegsmarine selected this location for the development of the U-238 because its remoteness from the Atlantic theater would keep the project's existence a secret and prevent Allied bombing. Fortunately, both the existence of the project and its location at Nordreisa were discovered by Allied Intelligence six months ago from intercepted Kriegsmarine radio transmissions.

The map above is based on information contained in the last known transmission from Allied Agent 27. It is believed that the U-238 is being constructed in #10 pen. Agent 27 has not been heard from since this transmission, and the map may be incomplete or inaccurate.