It's a mystery!  It seems like everyone in the City of Superior is talking about the helicopters that have been flying overhead all through the night;  they start about 10:00 PM and continue their mission - searchlights and all - until 3 or 4 AM.

Just as mysterious is the fact that no one officially knows who they are or why they're flying overhead.

To attempt to get an answer to the question I reached out to a variety of local agencies.  The Superior Airport, the Superior Police, and Enbridge all have no answer as to who they might be.  Upon direction, I also left messages with Lake Superior College and Lake Superior Helicopters.

Social media has speculated everything from military training to a pesticide spray for the Emerald Ash Borer;  if any of these rumors have truth to them they would be news to the agencies I spoke to.

Does anyone have any idea as to what the helicopters are doing?