UPDATE – M&N Main Line – Schwartzburg to Hilbert Post published: March 14, 2021 Post last modified: December 12, 2021 A couple of photographs of Cedarburg, Wis., have been added to The Milwaukee & Northern Main Line from Schwartzburg Junction page. The former M&N main line at Cedarburg, Wis., on 11 February 2021. Photograph by Tom Bruss.The former M&N main line at Cedarburg, Wis., on 13 March 2021. Photograph by Tom Bruss. You Might Also Like UPDATED – Our 2025 Open House December 7, 2025 UPDATE – Main Line – Schwartzburg to Hilbert May 26, 2024 NEW – Support Us, Please November 27, 2023