UPDATE – M&N Main Line – Schwartzburg to Hilbert New information and photographs of Plymouth, Wis., have been added to the Milwaukee & Northern main line from Schwartzburg Junction to Hilbert Junction page. The former M&N main line at Plymouth, Wis., on 13 March 2021. Photograph by Tom Bruss.A WSOR train passes the former MILW and C&NW depots at Plymouth, Wis., on 13 March 2021. Photograph by Tom Bruss. Previous Next You Might Also Like NEW – M&N High Cliff Spur March 21, 2021 Amberg Museum February 23, 2020 Railroad History Update – New Green Bay to Ontonagon Pages March 8, 2020