Park Falls Paper Mill Main Office is located at 200 1st Avenue in downtown Park Falls. It is registered with the National Register of Historical Places.
The 1920s were prosperous years for the Flambeau Paper Mill, as they were for all the area mills. In 1929, the company completed its red brick headquarters with a distinctive main section and clock tower. The building is listed on the National Register of Historic Places and is home to the Flambeau River Papers company offices.