Improvements include additional bathroom space 3:00 am, Apr. 24, 2021 × Close-up of the newer Pine River city water tower. The Pine River City Council approved a request by the Cass County Fair Board to initiate improvements at the Cass County Fairgrounds in Pine River. The city owns the grounds, while the fair board owns the buildings. Improvements will include hauling in Class 5 to fill low spots, fixing or installing electrical options where there used to be campsites, building a portable stage near the horse arena, installing a bathroom near the Don Smith Building and constructing a billboard. At its regular meeting Tuesday, April 13, the council also approved a request to use the Cass County Fairgrounds in Pine River for a Department of Natural Resources timber auction. The organizers will still need to get approval from the fair board to use the grandstand for the event.