Members of the McHenry County Historical Society visited one of four archival storage sites maintained by the Chicago & North Western Historical Society. Linen maps are rolled and stored by district.
A linen map of the Kenosha & Rockford Railroad line through Alden.
Map drawers containing turn of the century maps for the Chicago & North Western Railroad and lines it acquired.
Links
[1] https://mchenrycountyhistory.org/cnw-storage-site
[2] https://mchenrycountyhistory.org/users/kurt
[3] https://mchenrycountyhistory.org/tags/preservation