Dams on the Rock River

| LAND BETWEEN THE MARSHES | Dams on the Rock River The upper mill dam at Mayville in 1881 is frozen over due to a cold winter. ROB BOWE CONTRIBUTOR Before we get started, the Theresa Historical Society has announced it will be publishing a free history newsletter entitled, The Bridge. The Bridge will contain news from meetings and information about THS. Theresa Historical Society’s