Cases involving individuals who have been injured in crashes and collisions involving helicopters. A Helicopter Accident is an occurrence associated with the operation of an aircraft which takes place between the time any person boards the helicopter with the intention of flight and all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or structural failure and/or the aircraft is missing or is completely inaccessible.
Tunnel City is an unincorporated community in the town of Greenfield, in Monroe County, Wisconsin, United States, named for the train tunnel just to the west which was used by the Chicago and North Western Railway (trackage now abandoned west of the tunnel) and the Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road). The existing track is owned by the Canadian Pacific Railway, and carries the Amtrak Empire Builder passenger train, though rail traffic is dominated by freight.