Central Wisconsin Airport , referred to as "C-Way", is a public airport located southeast of the central business district of Mosinee, in Marathon County, Wisconsin, United States. It is owned by Marathon County and Portage County. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2023–2027, in which it is categorized as a non-hub primary commercial service facility. It is the fifth busiest of eight commercial airports in Wisconsin in te…