UPDATE – M&N Main Line – Schwartzburg to Hilbert New information and photographs of Cedarburg, Wis., have been added to The Milwaukee & Northern Main Line from Schwartzburg Junction to Hilbert 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 11 February 2021. Photograph by Tom Bruss. Previous image Next image You Might Also Like UPDATE – Appleton Branch December 13, 2021 UPDATE – Reminders of the Main Line – Hilbert Junction to Green Bay April 23, 2023 NEW – Reminders of the Main Line – Menominee River to Ontonagon August 1, 2022